LONGi LR8-66HVDF-640M

640 WHPBCHi-MO X10Anti-DustAnti-DustBifacial 75%132 cells

The LONGi LR8-66HVDF-640M is a 640 W solar panel featuring HPBC cell technology. Below are the verified electrical and thermal specifications extracted from the manufacturer datasheet.

Technical Specifications

Electrical Characteristics (STC)

Peak Power (Pmax): : 640 W
Open-Circuit Voltage (Voc): : 49.52 V
Max Power Voltage (Vmpp): : 40.78 V
Short-Circuit Current (Isc): : 16.38 A
Max Power Current (Impp): : 15.69 A
Number of Cells: : 132

Temperature

Temp. Coefficient Voc: : -0.2 %/°C
Temp. Coefficient Isc: : 0.05 %/°C
Temp. Coefficient Pmax: : -0.26 %/°C
Max System Voltage: : 1,500 V
Nominal Cell Temperature (NOCT): : 45 °C
Cell Technology: : HPBC
Bifaciality Factor: : 75%
Max Series Fuse: : 35 A
Power Tolerance: : +3%

Physical

Length: : 2,382 mm
Width: : 1,134 mm
Thickness: : 30 mm
Weight: : 32.5 kg

Datasheet

Download PDF10.7 MB

Find on AmazonCheck current price and availability

As an Amazon Associate, Solar Stack earns from qualifying purchases.

Other Models in This Series

Model	Power	Voc	Isc
LR8-66HVDF-640MCurrent	640 W	49.52 V	16.38 A
LR8-66HVDF-645M	645 W	49.62 V	16.46 A
LR8-66HVDF-650M	650 W	49.72 V	16.54 A
LR8-66HVDF-655M	655 W	49.82 V	16.62 A
LR8-66HVDF-660M	660 W	49.92 V	16.7 A
LR8-66HVDF-665M	665 W	50.02 V	16.78 A
LR8-66HVDF-670M	670 W	50.12 V	16.86 A

Check in calculator

Verify string compatibility with your inverter

Find replacement

Find electrically compatible alternatives

Find compatible inverter

See which inverters work with this panel