I have one of the 12VDC green flourescent lights. I got it at Outdoor Sports for around $15.00. It has lasted three times as long as the cheap floating headlamps and it is submersible. I recommend buying one of those, but I don't know about the Hydro Glow brand specifically. As far as the green versus white light issue, I can tell you I have observed no difference at all in attracting bait fish and I do a LOT of walleye fishing at Norris.