4-pack 8 battery holder.
Rechargeable battery=9.6 volt.
Alkaline battery=12 volt.
Worked out perfectly,converted a hardwired pendulum light,Used an LED, DC bulb as well as the pendulum light fixture, It works wonderfully and is very attractive.
A standard 1.5v AA battery delivers about 1.64 volts so when you put eight of them together you get over 13 volts from a pack of eight. When you load the circuit the voltage drops a tiny amount depending on how much current your gadget draws.
High quality Battery Holder 8 X AA Cells With Standard Snap.
Package Quantity: Battery Holder x 4pcs.
Size:Length 6.3cm*width 3cm*High 5.8cm. 2.5"X1.2"X2.3"
Holder Made Of ABS Plastic With Nickel Plated Springs To Hold The Batteries Tight In Place.
Great For Use With Arduino Boards, Also Directly Replaces Battery Holder In Many Electronic Devices.