Ya'll are right, 12vdc is the way to go, but for those intent on a particular model, or that cant make one themselves, thought I'd throw the 115vac angle in.
Actually the modern inverters draw negligible current when not loaded, and are about 95% efficient. People who want solar aeration and add a bug feeder, AC is an option. At any rate, I think it is well worth the investment. Some fish just wont come to the feeder, and some get off it. It also keeps them wanting to hunt real food. I haven't met a BG that wont eat a bug. 115vac also allows for a lamp timer to cut it on just for a couple hrs. and not have so much solar and battery costs.
Eastland, it sounds like you got hooked up good.