The Sylvania dot-it Silver (Pack of 2) stick and re-stick practically anywhere. Dot-it lbacking and stick it wherever you need light. Leave on the adhesive backing to carry it like a flashlight. They feature a wireless, portable design you can use at home or on the go. Lights include three replaceable aaa batteries that provide power for about 100 hours of bright, white LED light. The leds inside dot-it lights will last for years. Three replaceable aaa batteries are included.