So, if you saw my previous post about my feeder light I've finally finished up my little prototype. I have no idea what kind of wattage this solar panel is putting out. It was free-cycled from my FIL. I'm powering these 18 LEDs by two 6 volt lantern batteries in series. The batteries provide power to a simple on-off switch that then runs to a 12V PIR and onto an unfused set of wires that go straight to the leds. Yes, yes, I know, it's a bomb waiting to go off. I'm not finished yet, eventually there will be a fuse. But my biggest question is, if this thing is living outdoors, obviously in the sun, am I going to have to figure out a way to squeeze a charge controller in my ammo can? What will happen if I dont? Simple overcharging of the batteries?