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[-] rainwall@piefed.social 3 points 1 week ago* (last edited 1 week ago)

Tons of panels themselves are UL listed, including the ones on Amazon. I assume the same for Temu, but have no inclination to check.

Generally these "solar balcony" kits are all in one setups with a power regulator and sometimes a battery built in. The power regulator makes sure no power flows back into the grid when the grid is down, for safety. These are not UL listed just yet, although some companies are working on it.

There are several issues in the US that will need to be addressed for wide spread UL listing, though.It may take years.

this post was submitted on 29 Nov 2025
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