I would like to know the difference between off-brand solar power and branded solar power?

The substantial difference is not great. There are not many solar energy products on the market that actually have their own substantial content, and the homogeneity of the products is quite serious. But since you are using it yourself, I suggest you install a top-level brand. Although I do it too, it is more secure than top tier brands. For example, there are many second and third tier brands. various brands and OEM brands now, so consumers can't change their minds. In fact, if you think about it this way, whichever factory lasts the longest, it will be more powerful, its products will be more secure, and its after-sales service will be relatively more secure. Small factories and small workshops are open every day and some. are closed.