You can use solar panels with different wattages and brands but you have to connect them correctly.
Combining solar panels of different wattage.
If we have two solar panels with the same voltage but different wattage there is no problem.
The solar panel with the highest watt is the sunpower e series a commercial solar panel line.
Connecting them in parallel may back bias the smaller panel and damage it.
The top panel in the e series comes out at a whopping 435 watts.
You have two different higher voltage solar panels i e one 100w 24v and one 200w 24v that you want to connect to the already working 12 v solar power system comprising the two 12v 50 w solar panels connected in parallel from the previous scenario see the picture above.
Find out the safe way use them in our guide.
But if these are indeed panels strings of solar cells then the voltage of the larger panel will probably be a lot higher than that of the smaller panel.
Call for a free quote.
When just looking at residential solar panels the top wattage.
Endgroup dave jul 8 16 at 1 18.