Bicycle Headlight Illuminates the Darkest Path in the Night. This bike light is useful and can be used in anywhere. Please charge the battery periodically to keep the light work well and cycling safe. Great bike light set for outdoor bicycle drivers.Color: Shown in the pictures.Extremely bright USB rechargeable.Head Light has 2 modes, 4 brightness options (highlighted, long bright, blasting flash, and stroboscopic); Rear Light 2 modes, 6 brightness options (turbo bright, low bright, high bright, bright slow stroboscopic, high bright fast stroboscopic, blasting flash).Waterproof design, available to use in heavy raining days. Side-visibility lights for extra safety and protection at night.Special designed light beam will produce wide and flat lights instead of round beam, gives you a wider view without wasting energy and blinding oncoming pedestrian/riders.About Head Light: Performance Indicator: Beam Intensity: 3120CDBeam Distance: 158 MCharging time: 1-2 hDrop test: 1MPower Indicator: greater than equal 10% blue light, Less than 10% red lightModes: 2 modes, 4 brightness options (Highlighted/ Long Bright/ Blasting Flash/ Stroboscopic).Charging Compatible: Charging current should be less than or equal to 1 A. It can be plugged to notebook / computer / charging treasure / USB socket / car charger.About Tail Light: Performance Indicator: Charging time: 1hDrop test: 1MModes: 2 modes, 6 brightness options (Turbo Bright/ Low Bright/ High Bright/ Bright Slow Stroboscopic/ High Bright Fast Stroboscopic/ Blasting Flash).Charging Compatible: Do not charge over 5V, the battery will result in damage. Usage: How to switch mode: Double-Click ON/OFF button to switch mode.How to switch brightness: Press the ON/OFF button to switch brightness.Turn on: Click ON/OFF buttonTurn off: Press the ON/OFF button for 3 seconds. colour: like pictureMaterial: Aluminum alloy + plasticsize: 8.2*3*3.3cmPackage Contents: 1* front light1* rear light1* charging cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.