Ultra Bright Multi-Purpose Bike Headlight/Flashlight, CREE T6 LED, Multiple-Modes, Removable, Shock Proof, Blast Proof, Water Resistant Ultra Bright CREE T6 LED with Multiple Modes (High, Med, Low, Flash, and S.O.S.) Shock proof, blast proof, and water resistant Can be removed from bike mount and used as a flashlight Bike Mount Included! Compatible with (3) AAA batteries (included) or (1) High-capacity 18650 Lithium Ion Battery (not included)