Question 1

This innovative design offers multiple advantages:
    
        01
        Flexible installation in various environments without adding excessive roof load
        02
        Reduced heat loss and enhanced freeze protection thanks to the indoor tank placement
        03
        Aesthetic integration with modern architecture, ideal for multi-story buildings and villas
    
      Product Features
          01
          Food-grade Steel Liner
          Clean, hygienic water with no contamination
          02
          Medium Circulation
          Reliable operation in cold climates
          03
          Indoor Water Tank
          Safe, convenient, and easy to maintain
          04
          User-friendly Design
          Simple operation with long service life

/* Collector Specs Section Styles */
    .collector-specs-section {
      padding: 70px 20px;
      background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f8fafc 100%);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    .collector-container {
      max-width: 1400px;
      margin: 0 auto;
    }
    /* Section Header with Images */
    .specs-hero {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-bottom: 60px;
      align-items: center;
    }
    .hero-content {
      padding: 30px;
    }
    .specs-title {
      font-size: 48px;
      font-weight: 800;
      color: #1e293b;
      line-height: 1.2;
      margin: 0 0 20px 0;
    }
    .specs-title .highlight {
      background: linear-gradient(135deg, #3b82f6, #2563eb);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .specs-description {
      font-size: 16px;
      line-height: 1.7;
      color: #64748b;
      margin-bottom: 25px;
    }
    .hero-features {
      display: grid;
      gap: 10px;
    }
    .hero-feature {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #475569;
      font-weight: 500;
    }
    .hero-feature::before {
      content: '✓';
      width: 22px;
      height: 22px;
      background: linear-gradient(135deg, #3b82f6, #2563eb);
      border-radius: 50%;
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .hero-images {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .hero-image-wrapper {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
    }
    .hero-image-wrapper:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 50px rgba(59, 130, 246, 0.15);
    }
    .hero-image-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }
    .hero-image-wrapper:hover img {
      transform: scale(1.05);
    }
    /* Tabs Navigation */
    .specs-tabs {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 35px;
      flex-wrap: wrap;
    }
    .tab-button {
      padding: 12px 28px;
      background: white;
      border: 2px solid #e2e8f0;
      border-radius: 50px;
      font-size: 15px;
      font-weight: 600;
      color: #64748b;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .tab-button:hover {
      border-color: #3b82f6;
      color: #3b82f6;
    }
    .tab-button.active {
      background: linear-gradient(135deg, #3b82f6, #2563eb);
      border-color: #3b82f6;
      color: white;
      box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    }
    /* Table Content */
    .tab-content {
      display: none;
    }
    .tab-content.active {
      display: block;
      animation: fadeIn 0.4s ease;
    }
    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    .specs-table-wrapper {
      background: white;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
      border: 1px solid #e2e8f0;
    }
    .specs-table {
      width: 100%;
      border-collapse: collapse;
    }
    .specs-table thead {
      background: linear-gradient(135deg, #3b82f6, #2563eb);
    }
    .specs-table thead th {
      padding: 16px 18px;
      color: white;
      font-size: 14px;
      font-weight: 600;
      text-align: left;
    }
    .specs-table tbody tr {
      border-bottom: 1px solid #f1f5f9;
      transition: all 0.2s ease;
    }
    .specs-table tbody tr:hover {
      background: #f8fafc;
    }
    .specs-table tbody tr:last-child {
      border-bottom: none;
    }
    .specs-table tbody td {
      padding: 14px 18px;
      font-size: 14px;
      color: #475569;
    }
    .specs-table tbody td:first-child {
      font-weight: 600;
      color: #1e293b;
      background: #f8fafc;
    }
    /* Compact Table */
    .compact-table thead th {
      text-align: center;
      padding: 14px 12px;
    }
    .compact-table tbody td {
      text-align: center;
      padding: 12px 12px;
    }
    .compact-table tbody td:first-child {
      text-align: left;
    }
    /* Responsive Design */
    @media (max-width: 1200px) {
      .specs-hero {
        gap: 25px;
      }
      .hero-content {
        padding: 20px;
      }
      .specs-title {
        font-size: 40px;
      }
    }
    @media (max-width: 968px) {
      .collector-specs-section {
        padding: 50px 15px;
      }
      .specs-hero {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .hero-images {
        order: -1;
      }
      .specs-title {
        font-size: 36px;
      }
      .specs-table-wrapper {
        overflow-x: auto;
      }
      .specs-table {
        min-width: 600px;
      }
    }
    @media (max-width: 768px) {
      .specs-title {
        font-size: 30px;
      }
      .specs-description {
        font-size: 15px;
      }
      .hero-images {
        grid-template-columns: 1fr;
      }
      .specs-tabs {
        gap: 10px;
      }
      .tab-button {
        padding: 10px 20px;
        font-size: 13px;
      }
    }

Flat PlateSolar Collector

Advanced solar thermal technology with superior heat collection efficiency and durable construction for residential and commercial applications.
        
          78% optical performance efficiency
          Highly selective absorption coating
          Aluminium frame construction
          0.6 bar rated working pressure

Collector Specs
      Water Tank Models
      Workstation

Specification
              BTE2.0-2

Overall area (m²)
              2

Aperture area (m²)
              1.87

L x W x H (mm)
              2000 x 1000 x 80

Rated working pressure
              0.6 bar

Optical performance
              78%

Absorber sheet
              Al, highly selective absorption coating

Frame
              Aluminium

Model
              300
              500
              800
              1000

Collector
              BTE-2.0(×3)
              BTE-2.0(×4)
              BTE-2.0(×8)
              BTE-2.0(×10)

Length (mm)
              1740
              1845
              1720/1820
              2000/2100

Inner Diameter (mm)
              Φ480
              Φ580
              Φ800
              Φ800

Outer Diameter (mm)
              Φ580
              Φ700
              Φ900/1000
              Φ900/1000

Insulation
              PU foam 60mm
              PU foam 50/100mm

Inner tank material
              SUS304 / SUS316 L

Outer tank material
              Colour-coated sheet

Working pressure
              7 bar

Electrical heating element
              220V 1500W~3000W / 110V 1500W

Coil pipe material
              Optional (copper/sus304/sus316)

Coil size
              Φ12 x 1.0mm

Heat exchange coil
              None / Bottom coil / Upper coil and Bottom coil

Expansion tank
              12L
              24L
              50L
              50L

Model
              Input
              Pump
              Rated Power
              Controller
              Dimension (mm)

SR21H
              AC220V/110V, 50Hz
              Grundfos 15-65 130
              60-100W
              SR258
              450 x 300 x 160

TSCEN-6
              AC220V/110V, 50Hz
              Wilo ST20/11
              165W
              FTC-6
              270 x 460 x 160

/* Working Principle Section Styles */
    .working-principle-section {
      padding: 70px 20px;
      background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    .working-container {
      max-width: 1400px;
      margin: 0 auto;
    }
    /* Section Header */
    .working-header {
      text-align: center;
      margin-bottom: 50px;
    }
    .working-label {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: #3b82f6;
      margin-bottom: 15px;
      padding: 6px 18px;
      background: rgba(59, 130, 246, 0.1);
      border-radius: 20px;
    }
    .working-title {
      font-size: 42px;
      font-weight: 800;
      color: #1e293b;
      line-height: 1.2;
      margin: 0 0 20px 0;
    }
    .working-title .highlight {
      background: linear-gradient(135deg, #3b82f6, #2563eb);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .working-intro {
      font-size: 17px;
      line-height: 1.7;
      color: #64748b;
      max-width: 900px;
      margin: 0 auto;
    }
    /* Main Content Grid */
    .working-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: start;
    }
    /* Diagram Section */
    .diagram-section {
      position: relative;
    }
    .diagram-wrapper {
      background: white;
      border-radius: 20px;
      padding: 30px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
      border: 2px solid #e2e8f0;
      margin-bottom: 0;
    }
    .diagram-wrapper img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 12px;
      margin-bottom: 0;
    }
    /* Summary Box - Now under diagram */
    .summary-box {
      background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
      border: 2px solid #bfdbfe;
      border-radius: 16px;
      padding: 25px;
      margin-top: 20px;
    }
    .summary-title {
      font-size: 18px;
      font-weight: 700;
      color: #1e3a8a;
      margin: 0 0 12px 0;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .summary-title::before {
      content: '💡';
      font-size: 22px;
    }
    .summary-text {
      font-size: 14px;
      line-height: 1.6;
      color: #1e40af;
      margin: 0;
    }
    /* Components List - Optimized */
    .components-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 15px;
    }
    .component-item {
      background: white;
      padding: 16px 18px;
      border-radius: 12px;
      border-left: 4px solid #3b82f6;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }
    .component-item:hover {
      box-shadow: 0 8px 25px rgba(59, 130, 246, 0.12);
      transform: translateX(5px);
      border-left-width: 6px;
    }
    .component-title {
      font-size: 15px;
      font-weight: 700;
      color: #1e293b;
      margin: 0 0 6px 0;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .component-number {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #3b82f6, #2563eb);
      border-radius: 50%;
      color: white;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .component-description {
      font-size: 13px;
      line-height: 1.5;
      color: #64748b;
      margin: 0;
    }
    /* Responsive Design */
    @media (max-width: 1200px) {
      .working-content {
        gap: 40px;
      }
      .working-title {
        font-size: 38px;
      }
    }
    @media (max-width: 968px) {
      .working-principle-section {
        padding: 60px 15px;
      }
      .working-content {
        grid-template-columns: 1fr;
        gap: 35px;
      }
      .working-title {
        font-size: 34px;
      }
      .working-intro {
        font-size: 16px;
      }
      .diagram-wrapper {
        padding: 20px;
      }
      .components-list {
        gap: 18px;
      }
      .component-item {
        padding: 18px 20px;
      }
    }
    @media (max-width: 768px) {
      .working-principle-section {
        padding: 50px 15px;
      }
      .working-header {
        margin-bottom: 40px;
      }
      .working-title {
        font-size: 28px;
      }
      .working-intro {
        font-size: 15px;
      }
      .component-item {
        padding: 16px 18px;
      }
      .component-title {
        font-size: 14px;
      }
      .component-description {
        font-size: 13px;
      }
      .summary-box {
        padding: 20px;
      }
      .summary-title {
        font-size: 17px;
      }
      .summary-text {
        font-size: 13px;
      }
    }

System Overview
      
        How a Solar Split Water Heater Works

The diagram illustrates the working principle of a solar split water heating system. The system consists of two main parts — the solar collectors and the hot water storage tank — connected by a medium circulation loop.

System Benefits
          
            This configuration effectively utilizes solar energy while ensuring high efficiency, safe operation, and year-round reliability, even in cold or variable climates.

1
            Solar Collectors
          
            Installed on the roof, absorb solar radiation and convert it into heat.
          
            2
            Heat Transfer Medium
          
            Heat-conducting fluid circulates between collectors and storage tank.
          
            3
            Work Station & Expansion Tank
          
            Regulate pressure and ensure stable medium circulation.
          
            4
            Controller & Temperature Sensors
          
            Automatically monitor and control system temperature for efficiency.
          
            5
            Hot Water Storage Tank
          
            Indoor tank stores heated water with built-in electrical backup heater.
          
            6
            Safety & TP Valves
          
            Maintain system safety by releasing excess pressure or temperature.
          
            7
            Cold and Hot Water Lines
          
            Cold water enters at bottom, hot water supplied from top outlet.

Our Projects
            Global Solar Energy Excellence
            Pioneering sustainable energy solutions across continents, delivering innovative solar heating and hot water systems.

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                        World's first high-altitude solar centralized heating
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                        Engineering-grade collectors in series/parallel configuration provide reliable hot water supply.
                            
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View Details

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.projects-showcase {
    padding: 70px 0;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}
.container {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 40px;
}
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
}
.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #3b82f6;
    margin-bottom: 12px;
}
.section-title {
    font-size: 44px;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 16px;
    line-height: 1.2;
}
.title-highlight {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-description {
    font-size: 17px;
    line-height: 1.6;
    color: #64748b;
}
.projects-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: stretch;
}
/* Featured Project */
.project-featured {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}
.project-featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.project-featured:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    transform: translateY(-5px);
}
.project-featured:hover::before {
    opacity: 1;
}
.featured-image {
    position: relative;
    height: 300px;
    overflow: hidden;
    flex-shrink: 0;
}
.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.project-featured:hover .featured-image img {
    transform: scale(1.06);
}
.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    padding: 6px 16px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 20px;
}
.featured-content {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.featured-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
    line-height: 1.3;
}
.meta-tags {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e8e8e8;
}
.meta-tags span {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    padding: 4px 12px;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    border-radius: 12px;
    border: 1px solid #7dd3fc;
}
.featured-content p {
    font-size: 15px;
    line-height: 1.7;
    color: #64748b;
    margin-bottom: 20px;
}
.achievements-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}
.achievement {
    font-size: 13px;
    color: #1e293b;
    padding: 10px 14px;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    border-left: 3px solid #3b82f6;
    border-radius: 4px;
    font-weight: 500;
    line-height: 1.5;
}
.featured-actions {
    display: flex;
    gap: 10px;
    margin-top: auto;
}
.btn-primary, .btn-secondary {
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
}
.btn-primary svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}
.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}
.btn-primary:hover svg {
    transform: translateX(2px);
}
.btn-secondary {
    background: transparent;
    color: #64748b;
    padding: 10px 16px;
    border: 1px solid #cbd5e1;
}
.btn-secondary:hover {
    background: #f8fafc;
    color: #475569;
    border-color: #94a3b8;
}
/* Small Button Variant for Cards */
.btn-small {
    font-size: 0.75rem;
    padding: 8px 12px;
}
.btn-small svg {
    width: 14px;
    height: 14px;
}
/* Right Side Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 24px;
    height: 100%;
}
.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}
.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.project-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}
.project-card:hover::before {
    opacity: 1;
}
.card-image {
    height: 160px;
    overflow: hidden;
    flex-shrink: 0;
}
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.project-card:hover .card-image img {
    transform: scale(1.08);
}
.card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.card-content h4 {
    font-size: 17px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    line-height: 1.4;
}
.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}
.card-meta span {
    font-size: 11px;
    font-weight: 600;
    color: #64748b;
    padding: 3px 10px;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    border-radius: 10px;
    border: 1px solid #7dd3fc;
}
.card-content p {
    font-size: 14px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 16px;
    flex: 1;
}
/* Card Actions */
.card-actions {
    display: flex;
    gap: 8px;
    margin-top: auto;
}
.card-actions .btn-primary,
.card-actions .btn-secondary {
    flex: 1;
}
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
    .section-title {
        font-size: 38px;
    }
    .projects-layout {
        gap: 28px;
    }
    .featured-image {
        height: 260px;
    }
    .card-image {
        height: 140px;
    }
}
@media (max-width: 1024px) {
    .projects-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
        gap: 20px;
    }
    .featured-image {
        height: 300px;
    }
    .card-image {
        height: 180px;
    }
}
@media (max-width: 768px) {
    .projects-showcase {
        padding: 60px 0;
    }
    .container {
        padding: 0 20px;
    }
    .section-header {
        margin-bottom: 40px;
    }
    .section-title {
        font-size: 32px;
    }
    .section-description {
        font-size: 16px;
    }
    .featured-image {
        height: 240px;
    }
    .featured-content {
        padding: 24px;
    }
    .featured-content h3 {
        font-size: 21px;
    }
    .card-content h4 {
        font-size: 16px;
    }
    .featured-actions {
        flex-direction: column;
    }
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    .card-actions {
        flex-direction: column;
    }
}
@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .card-image {
        height: 200px;
    }
}
@media (max-width: 480px) {
    .section-title {
        font-size: 28px;
    }
    .featured-image {
        height: 220px;
    }
    .featured-content h3 {
        font-size: 19px;
    }
}

/* Company Introduction Module Styles - Isolated */
    .company-intro-module {
      padding: 50px 20px;
      background: #ffffff;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      box-sizing: border-box;
    }
    .company-intro-module *,
    .company-intro-module *::before,
    .company-intro-module *::after {
      box-sizing: border-box;
    }
    .company-intro-module .intro-wrapper {
      max-width: 1400px;
      margin: 0 auto;
    }
    /* Header Section */
    .company-intro-module .intro-main-header {
      text-align: center;
      margin-bottom: 35px;
    }
    .company-intro-module .intro-label {
      display: inline-block;
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: #0066cc;
      margin-bottom: 8px;
      padding: 5px 15px;
      background: rgba(0, 102, 204, 0.08);
      border-radius: 20px;
    }
    .company-intro-module .intro-main-title {
      font-size: 36px;
      font-weight: 700;
      color: #1a1a1a;
      line-height: 1.2;
      margin: 10px 0 8px 0;
    }
    .company-intro-module .intro-main-title .highlight {
      background: linear-gradient(135deg, #0066cc, #00a8e8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .company-intro-module .intro-subtitle {
      font-size: 15px;
      color: #666;
      max-width: 700px;
      margin: 0 auto;
      line-height: 1.6;
    }
    /* Main Content Grid */
    .company-intro-module .intro-main-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 30px;
      margin-bottom: 35px;
    }
    /* Image Card */
    .company-intro-module .intro-image-card {
      position: relative;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
      background: #f8f9fa;
      height: 380px;
    }
    .company-intro-module .intro-image-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.6s ease;
    }
    .company-intro-module .intro-image-card:hover img {
      transform: scale(1.06);
    }
    .company-intro-module .image-badge {
      position: absolute;
      top: 20px;
      right: 20px;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      padding: 10px 18px;
      border-radius: 30px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    }
    .company-intro-module .badge-text {
      font-size: 12px;
      font-weight: 700;
      color: #0066cc;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    /* Content Card */
    .company-intro-module .intro-content-card {
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 25px 30px;
      background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
      border-radius: 16px;
      border: 1px solid #e9ecef;
    }
    .company-intro-module .content-description {
      font-size: 14px;
      line-height: 1.7;
      color: #4a4a4a;
      margin-bottom: 15px;
    }
    .company-intro-module .content-description:last-of-type {
      margin-bottom: 0;
    }
    .company-intro-module .content-description strong {
      color: #1a1a1a;
      font-weight: 600;
    }
    .company-intro-module .stats-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 15px;
      margin-top: 20px;
    }
    .company-intro-module .stat-box {
      text-align: center;
      padding: 18px;
      background: white;
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }
    .company-intro-module .stat-box:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 25px rgba(0, 102, 204, 0.1);
    }
    .company-intro-module .stat-number {
      font-size: 28px;
      font-weight: 700;
      background: linear-gradient(135deg, #0066cc, #00a8e8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1.2;
      margin-bottom: 5px;
      display: block;
    }
    .company-intro-module .stat-label {
      font-size: 12px;
      color: #666;
      font-weight: 500;
      display: block;
    }
    /* Features Section */
    .company-intro-module .features-section {
      margin-top: 35px;
      padding: 40px 30px;
      background: linear-gradient(135deg, #0066cc, #00a8e8);
      border-radius: 16px;
    }
    .company-intro-module .features-title {
      font-size: 24px;
      font-weight: 700;
      color: #ffffff;
      text-align: center;
      margin-bottom: 25px;
      margin-top: 0;
    }
    .company-intro-module .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .company-intro-module .feature-card {
      padding: 25px 20px;
      background: #ffffff;
      border-radius: 14px;
      text-align: center;
      transition: all 0.3s ease;
      border: 2px solid #f0f0f0;
      position: relative;
      overflow: hidden;
    }
    .company-intro-module .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, #0066cc, #00a8e8);
      transform: scaleX(0);
      transition: transform 0.3s ease;
    }
    .company-intro-module .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 35px rgba(0, 102, 204, 0.12);
      border-color: #0066cc;
    }
    .company-intro-module .feature-card:hover::before {
      transform: scaleX(1);
    }
    .company-intro-module .feature-icon-wrapper {
      width: 60px;
      height: 60px;
      margin: 0 auto 15px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, rgba(0, 102, 204, 0.1), rgba(0, 168, 232, 0.1));
      border-radius: 14px;
      transition: all 0.3s ease;
    }
    .company-intro-module .feature-card:hover .feature-icon-wrapper {
      background: linear-gradient(135deg, #0066cc, #00a8e8);
      transform: scale(1.08) rotate(3deg);
    }
    .company-intro-module .feature-icon-wrapper svg {
      transition: all 0.3s ease;
      display: block;
      stroke: #0066cc;
    }
    .company-intro-module .feature-card:hover .feature-icon-wrapper svg {
      stroke: #ffffff;
    }
    .company-intro-module .feature-card h3 {
      font-size: 16px;
      font-weight: 600;
      color: #1a1a1a;
      margin: 12px 0 8px;
      line-height: 1.3;
      padding: 0;
    }
    .company-intro-module .feature-card p {
      font-size: 13px;
      color: #666;
      line-height: 1.6;
      margin: 0;
      padding: 0;
    }
    /* Gallery Section */
    .company-intro-module .gallery-section {
      margin-top: 40px;
    }
    .company-intro-module .gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .company-intro-module .gallery-item {
      position: relative;
      border-radius: 14px;
      overflow: hidden;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
      transition: all 0.4s ease;
      aspect-ratio: 1;
      background: #f8f9fa;
    }
    .company-intro-module .gallery-item:hover {
      transform: translateY(-8px);
      box-shadow: 0 15px 40px rgba(0, 102, 204, 0.15);
    }
    .company-intro-module .gallery-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }
    .company-intro-module .gallery-item:hover img {
      transform: scale(1.1);
    }
    .company-intro-module .gallery-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
      opacity: 0;
      transition: opacity 0.4s ease;
      display: flex;
      align-items: flex-end;
      padding: 20px;
    }
    .company-intro-module .gallery-item:hover .gallery-overlay {
      opacity: 1;
    }
    .company-intro-module .gallery-caption {
      color: #ffffff;
      font-size: 14px;
      font-weight: 600;
      text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
    /* Responsive Design */
    @media (max-width: 1024px) {
      .company-intro-module .intro-main-grid {
        grid-template-columns: 1fr;
        gap: 25px;
      }
      .company-intro-module .intro-image-card {
        height: 320px;
      }
      .company-intro-module .features-grid {
        grid-template-columns: 1fr;
        gap: 15px;
      }
      .company-intro-module .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
      }
      .company-intro-module .intro-main-title {
        font-size: 30px;
      }
    }
    @media (max-width: 768px) {
      .company-intro-module {
        padding: 35px 15px;
      }
      .company-intro-module .intro-main-header {
        margin-bottom: 25px;
      }
      .company-intro-module .intro-main-title {
        font-size: 26px;
      }
      .company-intro-module .intro-subtitle {
        font-size: 14px;
      }
      .company-intro-module .intro-content-card {
        padding: 20px;
      }
      .company-intro-module .stats-row {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .company-intro-module .features-section {
        padding: 30px 20px;
      }
      .company-intro-module .features-title {
        font-size: 20px;
        margin-bottom: 20px;
      }
      .company-intro-module .intro-image-card {
        height: 280px;
      }
      .company-intro-module .gallery-grid {
        grid-template-columns: 1fr;
        gap: 12px;
      }
    }

Who We Are
      Leading the Future of Clean Energy
      Innovative solutions powered by cutting-edge technology and sustainable practices

Industry Leader

SOLETKS is a high-tech enterprise focused on clean energy innovation. With its core Flat-Plate Clean Thermal Energy technology, the company integrates solar, geothermal, and air energy to deliver efficient solutions for heating, cooling, and power generation.

Backed by partnerships with leading research institutions, SOLETKS ranks among the world's top manufacturers of flat-plate collectors, driving global progress toward a sustainable future.
        
            117+
            Patents Secured
            Top 5
            Global Ranking
    
      Our Core Strengths

Solar Integration

Accepted Answer

Advanced flat-plate collector technology maximizing energy efficiency

Question 2

117+ Patents

Accepted Answer

Cutting-edge innovation portfolio protecting proprietary technologies

Question 3

Research Partners

Accepted Answer

Strategic collaboration with leading institutions worldwide

Question 4

Test Report Certificate

Accepted Answer

Quality Assurance Report

Question 5

Solar Keymark Certification

Accepted Answer

European Quality Standard

Question 6

ISO 9001 Quality Management

Accepted Answer

International Organization for Standardization

Question 7

ISO 14001 Environmental Management

Accepted Answer

International Organization for Standardization

Question 8

ISO 45001 Occupational Health & Safety

Accepted Answer

International Organization for Standardization

Question 9

Air Solar Collector

Accepted Answer

Product Certification

Question 10

Flat Plate Solar Collector

Accepted Answer

Product Certification

Question 11

PVT Solar System

Accepted Answer

Product Certification

Question 12

Solar Keymark Certification

Accepted Answer

European Quality Standard

Question 13

Solar Water Heater

Accepted Answer

Product Certification

Question 14

Vacuum Tube Solar Collector

Accepted Answer

Product Certification

Question 15

ISO 9001 Quality Management

Accepted Answer

International Organization for Standardization

Question 16

ISO 14001 Environmental Management

Accepted Answer

International Organization for Standardization

Question 17

ISO 45001 Occupational Health & Safety

Accepted Answer

International Organization for Standardization

Question 18

Solar Keymark Certification

Accepted Answer

European Quality Standard

Question 19

Solar Keymark Certification

Accepted Answer

European Quality Standard

Question 20

Air Solar Collector

Accepted Answer

Product Certification

Question 21

Flat Plate Solar Collector

Accepted Answer

Product Certification

Question 22

PVT Solar System

Accepted Answer

Product Certification

Question 23

Solar Water Heater

Accepted Answer

Product Certification

Question 24

Vacuum Tube Solar Collector

Accepted Answer

Product Certification

Question 25

Superior Quality

Accepted Answer

High-performance solar thermal systems built with advanced materials and 160+ strict inspection steps for long-term reliability.

Question 26

Cost Effective

Accepted Answer

Efficient production and smart system design ensure maximum energy output with minimal lifecycle costs.

Question 27

Precision Customization

Accepted Answer

Tailor-made flat-plate systems designed for diverse climates, industries, and installation requirements.

Question 28

Innovation Driven

Accepted Answer

Continuous R&D supported by 117 patented technologies, advancing solar absorption and integrated energy solutions.

Question 29

Reliable Support

Accepted Answer

24/7 global technical service and professional on-site assistance for smooth, reliable operation.

Question 30

Global Reach

Accepted Answer

Delivering sustainable energy solutions to customers across multiple regions with localized service networks.

Question 31

Certified Excellence

Accepted Answer

Recognized as a National High-Tech Enterprise with international certifications for quality and sustainability.

Question 32

Extended Warranty

Accepted Answer

Comprehensive product warranty and lifetime technical guidance for long-term peace of mind.

Especificación	BTE2.0-2
Overall area (m²)	2
Aperture area (m²)	1.87
L x W x H (mm)	2000 x 1000 x 80
Rated working pressure	0.6 bar
Optical performance	78%
Absorber sheet	Al, highly selective absorption coating
Marco	Aluminium

Modelo	300	500	800	1000
Colector	BTE-2.0(×3)	BTE-2.0(×4)	BTE-2.0(×8)	BTE-2.0(×10)
Length (mm)	1740	1845	1720/1820	2000/2100
Inner Diameter (mm)	Φ480	Φ580	Φ800	Φ800
Outer Diameter (mm)	Φ580	Φ700	Φ900/1000	Φ900/1000
Aislamiento	PU foam 60mm		PU foam 50/100mm
Inner tank material	SUS304 / SUS316 L
Outer tank material	Colour-coated sheet
Working pressure	7 bar
Electrical heating element	220V 1500W~3000W / 110V 1500W
Coil pipe material	Optional (copper/sus304/sus316)
Coil size	Φ12 x 1.0mm
Heat exchange coil	None / Bottom coil / Upper coil and Bottom coil
Expansion tank	12L	24L	50L	50L

Modelo	Input	Pump	Rated Power	Controller	Dimension (mm)
SR21H	AC220V/110V, 50Hz	Grundfos 15-65 130	60-100W	SR258	450 x 300 x 160
TSCEN-6	AC220V/110V, 50Hz	Wilo ST20/11	165W	FTC-6	270 x 460 x 160

Efficient & Elegant Solar Hot Water Solution

Solar Split Calentador de Agua

This innovative design offers multiple advantages:

Product Features

Flat PlateColector Solar

How a Solar Split Water Heater Works

Why Choose Our System?

Global Excelencia en Energía Solar

Calefacción Solar Centralizada para la Ciudad del Condado de Saga en la Ciudad de Shigatse

Proyecto de bomba de calor TPV Pro+ de la escuela de Tianjin

Sistema de agua caliente del hotel Cumbre APEC

Proyecto de agua caliente de la villa de resort de Florida

Proyecto de agua caliente de la iglesia de Harz

Liderando el futuro de Energía limpia

Nuestras fortalezas principales

Integración solar

117+ Patentes

Socios de investigación

SOLETKS – The First Choice for Global Customers

Global Certifications & Garantía de Calidad

Certificado de Informe de Pruebas

Certificación Solar Keymark

Gestión de Calidad ISO 9001

Gestión Ambiental ISO 14001

ISO 45001 Salud y Seguridad en el Trabajo

Colector solar de aire

Colector Solar de Placa Plana

Sistema Solar PVT

Certificación Solar Keymark

Calentador Solar de Agua

Colector solar de tubo de vacío

Gestión de Calidad ISO 9001

Gestión Ambiental ISO 14001

ISO 45001 Salud y Seguridad en el Trabajo

Certificación Solar Keymark

Certificación Solar Keymark

Colector solar de aire

Colector Solar de Placa Plana

Sistema Solar PVT

Calentador Solar de Agua

Colector solar de tubo de vacío

cURL Too many subrequests. SOLETKS Ahead

Superior Quality

Cost Effective

Precision Customization

Innovation Driven

Reliable Support

Global Reach

Certified Excellence

Extended Warranty

Vamos cURL Too many subrequests.

Efficient & Elegant
Solar Hot Water Solution

Flat Plate
Colector Solar