Low profile aluminium front light with a high-performance optical lens provides 450 lumens of light.Key Features:Rubber strap provides bi-directional tool-free mounting and easy removal on aero and round handlebars or helmet.,Output: 450 Lumens,Lamp: 2 white high power LED\'s,Battery: 3.7V 940mAh Lithium Ion (integrated),Burn time: 1.5 hr (High), 2.8 hr (Middle), 5 hr (Low), 10 hr (Blinking),Charge: Micro USB,Charge time: 2 hr approx,Lamp housing: Aluminium / Engineering grade polymer,Strap mount fits aero / round handlebars & helmet,IPX 6 waterproof,Low battery indicator,6.7x4.7x2.7cm,73g.