Review on Everbeam 365Nm 50W UV LED Black Light - High Performance LED Bulbs, IP66 Waterproof - Ultraviolet Flood Lighting For Aquarium, Indoor Or Outdoor Parties, Stage - Party Supplies, Halloween Decorations by Fred Maki

These lights worked great for a glow party, but I'm not sure the more expensive 365nm was worth it.I ordered 2 of both wattage sizes, along with a different cheaper brand that was not 365nm.These lights were cheaply built.One light had the (metal) corner broken off in its packaging during shipping, but still worked. They are made of that cheap pot metal that snaps into pieces.Another light had a bad row of leds that never worked, but the rest of the LED's worked fine and it wasn't immediately an issue. I didn't have time to return, so I used it anyway.Reviews seem to indicate that these run hot (and they do) and that will eventually cause failure. So I don't have high hopes for longevity.Compared to the cheaper (non 365nm) black lights I got from another brand, these did have a little less visible light to them, and were more of a purple color. But I ended up preferring the other lights BECAUSE they had more visible light for people to be able to see better at the party, and they still made everything glow super bright.