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Brand range: 220W–730W
Monocrystalline
Talesun TM7G78M-640
Max Power
640W
Efficiency
22.86%
Operating V
48.1V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 56.7V |
| Short Circuit Current (Isc) | 13.94A |
| Voltage at Pmax (Vmp) | 48.1V |
| Current at Pmax (Imp) | 13.3A |
| Temp. Coefficient of Pmax | -0.32%/°C |
| Dimensions | 2149 x 1303 x 35 mm |
| Weight | 35.0kg |
| NOCT | 43.3°C |
| PTC Rating | 612.1W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 280 Talesun models in database
FAQ
What warranty does Talesun provide?
Talesun offers a 30-year warranty for the TM7G78M-640, reflecting confidence in long-term durability.
How efficient is the Talesun TM7G78M-640?
This panel has 22.86% efficiency, which is high for commercial solar panels.
What is the max power output of the Talesun TM7G78M-640?
The Talesun TM7G78M-640 is rated at 640W under STC (1000 W/m², 25°C, AM 1.5).
What are the dimensions and weight of the Talesun TM7G78M-640?
It measures 2149 x 1303 x 35 mm and weighs 35.0kg.
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📊 Brand Context
Talesun offers 280 solar panel models from 220W to 730W.
Browse all Talesun models →