Features: Leds beads produces bright light to enhance maximum visibility on the road for your cycling safety. Weather tight design. Can be used normally in rainy days. USB rechargeable built in lithium-battery it only takes 2 hours to completely while works about 10 hours. 4 light modes switch there are more choices. Bright and visible LEDs lights suitable for most bike rider Specifications: Model: D C-918 Material: PC Color: red blue white(optional) Light source: Leds Mode: 4 modes time: 2 hours Work time: 10 hours Batterys: 1*3.7V 160mAh Package size: 100*90*40mm/.94*3.54*1.57in Package weight: 30g/1.06oz Packing List: 1*Bicycle Light