Not really on topic, but related (I hope?). Does anyone know where to get UV black light bulbs? Ideally I'd like to get a CFL like this , i.e. something that will fit like a regular incandescent with E27 fitting. I could go for incandescent if that's all that's available, but it has to be under 60W and I don't think they're as efficient?
They only had the long loopy ones with a screw base, for $21. It was good enough for me so I just got it, it's 25W and gives off a lot of light. They did say that they get the spiral ones in bayonet. J A Russell said their supplier had some for $34 or so, but I didn't ask specifically what the style was.