Cheap construction. They are not waterproof, not even 1%. The fans on the plate are questionable if they can withstand more than half an hour of operation. They are in the air, meaning they are not supported anywhere and they make noise. The whole set heats up too much, it burns. It doesn't seem to withstand long hours of operation. The only positive thing is the good brightness, and that's where the one star goes. In conclusion, I do NOT recommend them. Waste of money.