My green led don't draw the fish like my white one.
I made mine using a white led back up light for a big truck and stuck it in foam. I have the 1/4 guitar jacks so I soldered a guitar cord to the pigtail.
The standard car headlamp (
http://www.academy.com/shop/browse/f.../_/N-845454857 ) that walmart and others sell works really fine if not better but uses a lot of amps.