Hey Dog, the biggest thing about that is you'll run outta battery pretty fast. Make sure it's not your only propulsion.

12V lights will work OK if the water is pretty clear. If it's cloudy, the 12V lights lack the intensity to penetrate very well. Another way is to run an inverter and run a low wattage (100W or 150W) halogen light or two. There again, it will drain your battery in a couple of hours even w/o the troller.

I wish you luck.

Or something that I have never tried that I have always been curious about is a 4' florescent shop light. Again you'd have to use an inverter, but thet only pull around 100W or so.