1 x super bright led made of high quality white abs plastic it is sturdy, durable and for long-time usage run time : 3 to 4 hrs from high to low led bulb life is up to 100,000 hours rechargeable battery inside this torch is rain proof (should not be immersed in water though) multi function 4 mode operation : low/mid/high/flashing operating switch is located on the top of the light, one touch switch design convenient to use usb rechargeable, can be charged with laptop or mobile charger (usb cable included) the torch can be mounted on the bicycle handle bar with the help of rubber mount as shown in the pic(rubber mount is included in the package) visibility upto 50 ft ahead net weight : 100 gms approx. With mount and usb cable to change the mode, press the switch button gently no external batteries required size: approx. 105x33x90mm (l w h) colour: as picture shows 2 hour charging time automatic, fully charged cut-off system smart charging ensures longer battery life conveniently located on top of the light for easy access one touch dismount button, press and slide the light out without removing the whole mounting bracket 360 degree swivel ability can be used as a mountain bike headlight, road bike lights, kid's bike safety light and more perfectly fitted for the handlebar diameter of bike: approx. 20-31mm