ACDelco ARL836 Li-ion 8V 1-Watt LED flashlight… battery included. With high performance Cree 1-watt LED that performs 8500 Lux brightness at 3 ft. distance. Designed with magnet for easy attaching on car body or metal materials. Up to 8 hours run-time by ACDelco 8V battery. Tool weight is 0.31 lbs.