Highlights
- High module efficiency with lower power degradation
- PID, LID & LeTID resistant for long-term reliability
- Bifacial design delivers up to 25% extra energy
- Half-cut & multi-busbar cells reduce shading losses
- Performs well in snow, humidity, and dusty environments
- Guaranteed positive power tolerance (0 to +5W)
Websol W6600-GTB-MP – 640–660Wp Bifacial Mono PERC Half-Cut Solar Module
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Highlights
- High module efficiency with lower power degradation
- PID, LID & LeTID resistant for long-term reliability
- Bifacial design delivers up to 25% extra energy
- Half-cut & multi-busbar cells reduce shading losses
- Performs well in snow, humidity, and dusty environments
- Guaranteed positive power tolerance (0 to +5W)
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Description
The Websol W6600-GTB-MP Series is a high-power solar PV module line offering outputs from 640Wp to 660Wp, optimized for large-scale utility and commercial solar installations. Built with monocrystalline PERC half-cut cells and advanced bifacial glass-glass technology, these modules ensure excellent energy yield and long-term reliability.
With bifacial architecture, the modules capture sunlight from both front and rear surfaces, delivering up to 25% more energy depending on site conditions. This design improves overall energy output and system performance, especially when installed over reflective surfaces such as concrete or sand.
The half-cut cell and multi-busbar design enhance performance by reducing internal resistance and minimizing losses from shading or microcracks. The robust dual-glass structure improves module durability, offering greater resistance against PID, LID, and harsh environmental conditions.
Certified to withstand extreme weather, including 5400 Pa snow load and 2400 Pa wind load, the W6600-GTB-MP series offers a positive power tolerance (0 to +5W) and excellent temperature performance. It’s an ideal solution for developers and EPCs seeking maximum output, efficiency, and ROI in high-capacity solar projects.
Specification
Electrical Specifications
| Bifaciality Factor (%) |
70% – 85% |
|---|---|
| Maximum Power Current (Imp) |
16.72 ~ 17.09 A |
| Maximum Power Voltage (Vmp) |
38.28 ~ 38.62V |
| Maximum System Voltage (V) |
1500 V DC |
| Short Circuit Current (Isc) |
18.13 ~ 18.41 A |
| Open Circuit Voltage (Voc) |
44.81 ~ 45.34 V |
| Rear Side Gain (%) |
~ |
| Temperature Coefficient |
-0.35 % / °C |
Connector Specification
| Cables & Connectors |
MC4 Compatible |
|---|
Mechanical Details
| Weight | 34 kg |
|---|---|
| Dimensions | 2390 × 1303 × 35 cm |
| Cables & Connectors |
MC4 Compatible |
| Frame Material |
Anodized aluminum |
| Junction Box Rating |
IP68 |
| Mechanical Load Capacity |
5400 Pa (front) / 2400 Pa (rear) |
General
| Cell Type | |
|---|---|
| Efficiency (%) | |
| No. of Cells |
132 |
| Power Rating (Wattage) | , , , , |
| Panel Type | , , |
| Warranty (Years) |



