Olight S10 L2 400 Lumens CREE LED Flashlight EDC with EdisonBright CR123A Lithium Battery Max output of 400 lumens using CREE XM-L2 LED Runs on: 1x CR123A or 1x RCR123 (CR123A battery 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) This bundle include one EdisonBright CR123A lithium battery