Select the panel you want to replace
Voc
49.8 V
Vmpp
41.69 V
Isc
18.81 A
Impp
17.75 A
TcVoc
-0.24 %/°C
TcPmax
-0.28 %/°C
Pmax
740 W
Cells
132
Bifaciality
80%
The Tongwei TWMNF-66HD740 is a 740 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.
Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.