Light Source: White 9 chip-on-board LED (2 w) x 1. *Cannot be replaced
Batteries: AAA batteries x 3 (sold separately)
Continuous Usage Time: Approx. 8 hours (when using new batteries)
Installation instructions (back): Magnet (1 each on the back left and right), Velcro tape + double-sided tape (1 each on the back left and right), Hook hole (1 on the top of the back)