Correct me if I'm wrong here, but that little ballast converts the voltage once again for the cold cathode to an extremely high voltage yet very low amperage, yes? I forget exactly how the thermodynamics pan out on it, but I do remember getting into a lengthy discussion with a buddy of mine about the mechanics of cold cathode lights.
I myself have wanted to utilize a small cold cathode light as a "moonlight" for my aquarium... and fortunately for me, I have both a 6" automotive cold cathode light, and a portable spotlight with a 12v outlet on it. I just might have to test it out tonight and see how it turns out. For long term use, I could get an inverter which will convert to the little 12v cigarette lighter plugs and plug the automotive ones directly into that. Little more expensive, but saves me some work. Heck, the automotive ones even have screw loops on the ends so you could screw it into a canopy if need be... though I personally don't have one. I might have to build something to house them in to keep it just lighting my aquarium and not my whole bedroom..... :-\
I myself have wanted to utilize a small cold cathode light as a "moonlight" for my aquarium... and fortunately for me, I have both a 6" automotive cold cathode light, and a portable spotlight with a 12v outlet on it. I just might have to test it out tonight and see how it turns out. For long term use, I could get an inverter which will convert to the little 12v cigarette lighter plugs and plug the automotive ones directly into that. Little more expensive, but saves me some work. Heck, the automotive ones even have screw loops on the ends so you could screw it into a canopy if need be... though I personally don't have one. I might have to build something to house them in to keep it just lighting my aquarium and not my whole bedroom..... :-\