DON'T BUY THIS. I am returning them to Amazon today. Way too light for my taste... I would not trust them to hold my panel on the roof while driving down the highway...
thanks for the info. I haven't purchased it yet. I'll probably do a normal metal z bracket. Bolt the panel to the camper.
Sometimes people trip and fall down stairs.
Sometimes assholes push people down stairs.
That doesn't mean "stairs are bad" nor does it make someone who pushes someone down the stairs any less of an asshole.