Dogface, thanks for the info. I've used hand held spotlights in the past and was hoping for something better. However, you may be right that a handheld is the best way to go.
My fishing buddy and I sometimes shine a light on the bank above where we are fishing. We're able to see where to cast and, at least at our lake, it doesn't seem to affect the fish. Right now we turn the light on and lay it in one of the seats pointed toward the bank while we're fishing. In my opinion, not the ideal set-up.
Thanks for the info. Handheld spotlight it is until I come up with something better.