OLIGHT S10-L2 Baton 400 Lumen LED EDC Flashlight, Black LED: CREE XM-L2, Double click the on/off button to activate strobe mode Runs on: 1x CR123A or 1x RCR123 (NOT included) Output mode/Runtime: High:400Lumen/1.25hrs, Mid:85Lm/7.5hrs, Low:5Lm/108hrs, Moonlight: .5Lm/360hrs Dimensions: Length: 2.77" (70.5mm) Diameter: .9" (23mm) Weight: 1.48 .oz. (42g) (excluding battery) Magnetic tail allows the flashlight to be attached vertically on any magnetic surface