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Hello DIY Solar Forum, This is my first post to the forum. :cool: I am putting together my first "system", but just the start of one, that hopefully will expand as my vehicle changes over time. I have searched for this minimum voltage for MPPT, and found some posts that make it sound like I...

Is it possible to know if flexible panels are ETFE based on the texture, or do some companies use PET with the dimples associated with ETFE? Attached are some pictures of Kingsolar 50W panels, poorly described as ETFE on Amazon, but the spec sheet (8.5x11 photocopy) that came with them says PET...