Ascher Ultra Bright USB Rechargeable Bike Light Set Powerful Bicycle Front Headlight and Back Taillight 4 Light Modes Easy to Install for Men Women Kids Road Mountain Cycling Black

4 Light Mode Options and Discharge Time of Full-charging. Headlight: 6.5 hrs (full brightness) 10 hrs (half brightness) 6.5 hrs (slow flashing) 12 hrs (fast flashing). Taillight: 9.5 hrs (full brightness) 16 hrs (half brightness) 10 hrs (slow flashing) 11 hrs (fast flashing). How to Charge.1.Atach the micro USB cable to the Bike light’s micro USB input port.2.Insert the other end of the cable into either an AC adapter(not included ) connected to a wall socket or an actve computer USB port.3.The LED indicator of front light has a red light when charging and the LED indicator will turn to be green when finished charging.4.The LED indicator of tail light has a red light when charging and the LED indicator will not display when finished charging. Package Contents: 1 X headlight (white light) 1 X taillight (red light) 2 X USB cable 1 X mount bracket with screw for headlight1 X silicone mounting strap for taillight 1 X instruction manual