- Efficiency of 23.1% matches the TOPCon 600-650W median
- Power density of 230.7 W/m² packs 3.0 W/m² more into the same footprint vs TOPCon 600-650W median (227.7 W/m²)
- At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
- Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
- In the top 10% for efficiency among all TOPCon panels
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Series DMxxxM10T-B78HSW 5 variants
The DMEGC DMxXXM10T-B78HSW series are bifacial modules in a bi-glass configuration, designed for installations where real energy gain matters as much as catalog parameters. The application of N-type monocrystalline TOPCon technology helps maintain high performance over time and minimizes typical losses found in older designs. Thanks to the dual-glass structure, the modules are better prepared for challenging environmental conditions—from humidity and ammonia to wider temperature fluctuations, which is especially important for projects deployed for years. Another key advantage is bifaciality, which allows using reflected light from the ground, increasing energy production in PV farms, ground-mounted systems, and bright commercial rooftops. The series focuses on high mechanical durability and operational stability, translating to lower warranty claim risks and a more predictable energy cost over the entire lifecycle. This makes it an excellent choice for C&I and utility investors aiming to maximize yield on limited surfaces and enhance project profitability.
Electrical Parameters (STC)
| Nominal Power (Pmax) | 645 Wp |
| Module Efficiency | 23.10% |
| Voltage at Max Power (Vmpp) | 48.05 V |
| Current at Max Power (Impp) | 13.44 A |
| Open Circuit Voltage (Voc) | 57.90 V |
| Short Circuit Current (Isc) | 14.19 A |
| Max System Voltage | 1500 V |
Temperature Coefficients
| Temp. Coeff. Pmax | -0.290%/°C |
| Temp. Coeff. Voc | -0.250%/°C |
| Temp. Coeff. Isc | 0.048%/°C |
| NOCT | 42°C |
Cell Technology
| Cell Type | Monocrystalline |
| Cell Count | 156 |
| Bifacial | Yes |
| Bifaciality Factor | 80% |
Dimensions & Weight
| Length | 2465 mm |
| Width | 1134 mm |
| Height | 30 mm |
| Weight | 33.5 kg |
| Area | 2.80 m² |
| Power Density | 230.7 Wp/m² |
Warranty
| Product Warranty | 15 years |
| Performance Warranty | 30 years |
| End-of-Warranty Output | 87.4% |
| First Year Degradation | 1.00% |
| Annual Degradation | 0.40%/year |