ya i had my 12v fan hooked up to a 19v laptop cord for a while, made a lot of noise, but its still going strong.
I was under the impression that you could go lower voltage wise but of you went higher the fan would burn out. Im going to try to find a couple 12 volt dc adaptors. My plant has been doing really well so far since adding those new lights in. I went to walmart the other night and got one of those clamp on shop lights with the round reflector to get a little more light in there. I appreciate all the advice so far man, it's been a big help.
ya man thats what i read, but it was an old salvaged one, and it was temporary. no problem, im glad i was able to learn in person from an old timer one summer, i new somewhat what i was doin when i germed my first seed , ya those clamp lights are awesome, i gotta get a few now that i got a huge CFL taking my over head space