I think germicidal lamps might work. I tried a standard 'blacklight', and it didn't work at all, for me. Leaving it out in the sun worked great, though. --Michael On 06/11/2013 12:17 AM, Brian Goers wrote: > It looks as if most people use the sun to activate the Retr0Bright gel. > Could you describe your UV lamp setup? > Do UV C, germicidal lamps work? >