Find replacement for Qcells Q.TRON BLK M-G2+ 420

420 W panel, 108 cells

Original Panel905

Select the panel you want to replace

String Compatibility Calculator

Verify the replacement panel works with your inverter

How the Algorithm Works

Learn how panels are scored and matched

Panel Matcher

Find all compatible panels for a specific inverter

Original Panel Specs

Voc

38.75 V

Vmpp

32.54 V

Isc

13.58 A

Impp

12.91 A

TcVoc

-0.24 %/°C

TcPmax

-0.3 %/°C

Pmax

420 W

Cells

108

The Qcells Q.TRON BLK M-G2+ 420 is a 420 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.