2450 coin cell battery, 1.82 x 1.34 inches, 540 mAh BATTERY NOT INCLUDED
Light up your smaller dollhouse miniature projects and room boxes now for longer!
...2 LEDs with 8 inch wires,
...A coin cell holder with pre-attached mini-switch circuit board (battery not included)
...2 1-inch pieces of "EZ-shrink" shrink-tube
You have the option to add more lights, this kit can run up to 10 lights nice and bright.
10 LEDs will run about 25 hours on one battery.