The Canadian Solar 640W X20 Bifacial Solar Panel is a premium N-Type TOPCon bifacial solar module designed for high power output, better energy yield, and long-term reliability. With 640W maximum power and 23.7% module efficiency, this panel is suitable for commercial, industrial, and large-scale solar power systems.
This module uses bifacial technology, which means it can generate electricity from both the front and rear sides. The rear side can produce additional power depending on installation conditions such as ground reflection, mounting height, tilt angle, and structure. With 80% power bifaciality, the Canadian Solar 640W X20 panel can help improve total solar energy generation.
The panel is built with strong dual glass construction, including 2.0 mm heat-strengthened front glass with anti-reflective coating and 2.0 mm heat-strengthened back glass. Its anodized aluminium alloy frame, IP68 junction box, and 3 bypass diodes provide durability and stable outdoor performance. The low temperature coefficient of -0.29%/°C helps maintain better power output in hot weather.
According to the datasheet, this module is tested for heavy snow load up to 5400 Pa and wind load up to 2400 Pa. It also comes with a 12-year enhanced product warranty and 30-year linear power performance warranty, making it a reliable choice for long-term solar installations.
| Product Name |
Canadian Solar 640W X20 Bifacial Solar Panel |
| Module Type |
N-Type High Power Bifacial Module |
| Cell Technology |
TOPCon Cells |
| Maximum Power (Pmax) |
640W |
| Operating Voltage (Vmp) |
42.1V |
| Operating Current (Imp) |
15.23A |
| Open Circuit Voltage (Voc) |
49.7V |
| Short Circuit Current (Isc) |
16.24A |
| Cell Arrangement |
132 Cells [2 × (11 × 6)] |
| Dimensions |
2382 × 1134 × 30 mm |
| Front Glass |
2.0 mm heat-strengthened glass with anti-reflective coating |
| Back Glass |
2.0 mm heat-strengthened glass |
| Frame |
Anodized aluminium alloy |
| Junction Box |
IP68, 3 bypass diodes |
| Cable |
4.0 mm² IEC / 12 AWG UL |
| Cable Length |
300 mm (+) / 200 mm (-), or customized length |
| Connector |
Tlian T6 / Stäubli PV-KST4-EVO2A/6I, PV-KBT4-EVO2A/6I |
| Maximum System Voltage |
1500V IEC/UL |
| Maximum Series Fuse Rating |
35A |
| Protection Class |
Class II |
| Operating Temperature |
-40°C to +85°C |
| Temperature Coefficient (Pmax) |
-0.29%/°C |
| Temperature Coefficient (Voc) |
-0.25%/°C |
| Temperature Coefficient (Isc) |
0.045%/°C |
| Nominal Module Operating Temperature |
41 ± 3°C |
| Product Warranty |
12 Years |
| Linear Power Performance Warranty |
30 Years |
| First Year Power Degradation |
Not more than 1% |
| Annual Power Degradation After First Year |
Not more than 0.4% |
| Pieces Per Pallet |
36 Pieces |
| Pieces Per 40’ HQ Container |
720 Pieces |
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