The TCL Zhonghuan HSM-BD66-GC640 is a 640 W solar panel featuring TOPCon cell technology. Below are the verified electrical and thermal specifications extracted from the manufacturer datasheet.
| Model | Power | Voc | Isc |
|---|---|---|---|
HSM-BD66-GC640Current | 640 W | 49.58 V | 16.58 A |
| 645 W | 49.68 V |
| 16.63 A |
| 650 W | 49.78 V | 16.68 A |
| 655 W | 49.88 V | 16.73 A |
| 660 W | 49.98 V | 16.78 A |
| 665 W | 50.02 V | 16.78 A |