I bought this box from hobbytown USA $35 bucks I took a paint thinner can that the guys in the bodyshop had in the trash and had the painter shoot and clear cote it {ford paint color is important} Nice guys ! anyway I found a 6 volt pump @ swap meet for five bucks I put a 6 volt batt. in the tray and hooked a toggle switch to the side works cool [8D] A friend suggested I put post on the side" 1/4 20 bolts"so I could charge my 12 volt without taking off the panel very cool idea The field box was fun to put togeather Have fun!....................Mike