RE: nucli-eye black lights
I've not tried the nicli-eye but me and my partner switched to the moon nite led blacklights and really like them. They have two series the halfmoon and the full moon. We have two halfmoons which are only about 2 1/2 inches long and are powerful little devils. The full moon version is about 5 inches and should do really well on a 20 footer. Really put out a quality light and wouldn't trade them for anything. We bought the half moons for about 85 bucks a piece and the full moon was around 135 I believe.
RE: nucli-eye black lights
I have been using the nucli-eye for over a year now. I think it is great. I was using stan sloans and while they are good lights, they do not compare to the nucli-eye. I use one on each side of the boat, you don't need two. I have read comparisons of them and other brands, and they tested better than anyothe brands. They are very small and durable. They are a little pricy, but probably worth it if you do lots of night fishing.