2 white LEDs front light provides 150 lumens of light at an affordable price.Rubber strap provides bi-directional tool-free mounting and easy removal on aero / round handlebars or helmet. Output: 150 Lumens Lamp: 2 white high power LED’s Battery: AA x 2 included Burn time: 3 hr High 6 hr Middle 50 hr Blinking Lamp housing: Injection moulded plastic Strap mount fits aero / round handlebars and helmet IPX 6 waterproof Low battery indicator 7.5x5.1x3.3cm 45g