I would like to cure UV epoxy and do some UV experiments. ( Yes, I know I must shield my eyes ) I think I can get UVA,B,C from a continuos spark. A spark is not very convenient. I have not found any LEDs that are suitable. Gus in Denver --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .