These small battery powered lights are cast in glow in the dark, translucent urethane. Each comes with a small LED tealight that can be set to flicker like a candle, flash or have a steady glow. It is turned on with a button at the top of the tealight itself and is then snugly placed into the crystal. You can also use a remote control for these lights if you want more convenience ( buy it here) .

When these lights are charged with UV /sunlight they will glow a BRIGHT purple. You could hang these lights from your ceiling, have them on a book shelf or desktop. You can even use the lights outside since the tealight itself is waterproof.

These are the first experimental casts i did so one has weird metallic powder distribution at the top. Each one has a wool base.

The tall Selenite crystal is 5 1/4" tall and the Quartz clusters are just over 4.5" tall.