Now you can have light wherever you need it! Luma Lights™ are compact, lightweight, motion-activated lights that feature energy-efficient LEDs inside a specially-designed, smart-touch "stone". The stone is automatically activated by touch or movement, and provides 360º of ambient light wherever you need it most. No more blindly digging through your purse searching for your keys, or fumbling through the medicine cabinet at night! The lights turn off automatically after 15 seconds. Set includes two Luma Lights plus a holder with an adhesive backing to hang your light on any smooth surface. Plastic. Each req. 2 "AAA" batteries (sold separately). 2 3/4"Diameter.