A quality lamp. I expect this produces a lot more UV than the cheap unbranded versions.

My 20W GE pumps out enough to light a large room. Would love to see some blacklight gear under that in a sports hall or somewhere.

this commonly use in bowling ally and some Party houses, also in Skating rinks.

Yeah, I saw loads of these in use a few years ago in the LA Bowl in Winwick. It’s has a refurb since I went last went which means these are probably gone. A shame really because that place was like stepping back in time to 1997 which I kind of like tbh lol.