Specifications: Brand: TrustFire Model: F20 Emitter Type: CREE Q5 LED LED Quantity: 1 Battery Configurations: 1 x AA/1 x 14500 battery(not included) Switch Type: Clicky/Clickie Switch Location: Tail-cap Mode: 1 Brightness: 210 lumens maximum brightness Shell material: Aluminum Alloy Dimensions (L x Head Dia. x Body Dia.): 9.6cm x 2cm x 2cm Package included: 1 x Flashlight