These new super bright LED bicycle lights are all about safety on the road. It is the world's first wind-up bike light. Complete bike light set includes the 3 White LED headlight and the 3 RED LED taillight. All you do, if your lights start to dim a bit, is wind-up the crank on the headlight and it recharges the rechargeable battery and sends power to both lights.The headlight gives you plenty of light at night and is removable for use as a flashlight. Includes all mounting hardware and directions. The taillight connects to the headlight with a slim cable. When fully charged, you can expect 50 minutes of light, using both the headlight and taillight. One minute of winding provides about 8 minutes of light or 60 minutes in flashing mode.