About Cateye AMPP 400S Front LightBrighter lights for shorter days. Carry on your adventure into the dimming light. Safety first, the AMPP400S comes with maximum side visibility, USB-C, and securely held in place with Cateye's adjustable FlexTight™ bracket. FeaturesRechargeable headlight (400 lm) Wide beam with OptiCube™ lens technology Excellent side visibility Large power button for easy operation Low battery indicator (Illuminates in red with less than 20% battery remaining) USB-C rechargeable (USB-C cable not included) Mode memory function Five light modes (High / Middle / Low / Daytime HyperConstant / Flashing) Turns on High mode with double-click of power button Sturdy FlexTight™ bracket Helmet mount and center fork bracket (optional) Tech SpecsDimension: 36 x 100.5 x 38.5 mm Weight: 106 grams Light source: White LED X1 Run time: High mode 400 lumens: 2hrs, Middle mode 200 lumens: 4hrs, Low mode 100 lumens: 8hrs, Daytime HyperConstant mode 400/100 lumens: 6hrs, Flashing mode 100 lumens: 60hrs Battery: Li-ion rechargeable battery (3.7V-2200mAh) Recharge time: approx 4 (1A) Recharge/discharge number of times: about 300 times (until the rated capacity drops to 70%) Water resistant: IPX4 Other: Low battery indicator, lighting mode memory function, Helmet mount / Center fork bracket (optional) About CatEyeCatEye is the leading manufacturer of cycle computers, lights and reflectors to cyclists in the world. Founded in 1954 in Osaka, Japan, CatEye has always been a leader in innovation and technology.