I'd hope they give you proof of being a het clown, that big of a het clown is worth several times that...you know what they say about a deal that sounds too good to be true

Hydrofarms, everyone has touted how good they are.
I've bought two for friends and one was DOA...the other "works" but is all over the place. Heck I had much better luck with repti-temp 500R thermostats back when I trusted cheap thermostats...