You can use solar panels with different wattages and brands but you have to connect them correctly.
Mixing watts solar panels.
However if you take certain factors into careful consideration you can easily achieve this goal.
Though mixing different solar panels is not recommended it s not forbidden and things would be ok as long as each panel s electrical parameters voltage wattage amps are carefully considered.
Mixing solar panels of various voltage or wattage or produced by different manufacturers is a frequently asked question by most diyers.
In some ways parallel series combination of pv panels is very similar to doind the same with batteries.
Mixing solar panels in parallel total connected power 150w 150w 150w 150w 600w unlike connection in series if among modules connected in parallel there is a module of power output lower than the output of the other modules this might not affect seriously the total power output of the array provided that this module has equal to the other modules rated voltage.
Combining pv panels in parallel requires you to use panels with the same very close voltages.
Mixing different wattage solar panels solar power authority.
To combine panels effectively efficiently.
Combining pv panels in series requires you to use panels with the same very close currents.
Also read why solar power panels are necessary for you.