Mixing 4a and 4c solar panels

DIY
,
1

Hi

Can I mix 4a solar panels with 4c solar panels now that 4a panels are no longer available.
Brian

2

Strings of panels can be combined in parallel if their open circuit voltages are within 5% of each other.

You can also combine panels in series if their Isc and Imppt values also match within 5%.

so check the label on the back of the module for the Voc and Isc ratings.