Powerful aluminium CNC body, 4 functions: super bright (2 hrs), bright (4 hrs), medium bright (9hrs), flashing ( 18hrs), 3 watt HI-POWER LED light source , 700 mAh Lithium-ion battery, 2-3 hours charging time (micro USB), Low battery indicator (25%), Multi-mounting: can be mounted on a bicycle helmet and handlebar (The box contains only the handle bar bracket), Box includes: Gepida Booster bicycle light, Micro USB cable, handle bar bracket, 2 rubber rings, user manual, Dimensions: 61,5mm X 20mm X 20 mm, Weight: 50 g