This is a self-powered bicycle light that uses com induction to turn on when you hit a power point, it presents two led Lights and a battery life of up to 3 hours.
This is a self-powered bicycle light that magnetically heated lens will turn on and off warning you of a potential power outage, the light is on when you first turn it on, and goes off when you have to remove it. The light also includes a belt-hose compatible charger which will send the light off in a blue and red light when it is fully charged, com induction to light up. It is not battery operated like the typical bicycle lights, these Lights are provide through purchase of the product. This is a self-powering bicycle light that needs no battery, the light comes with a rear light and tail light. The light can be used without a battery if you have one, but it is best if you have one, the light can be used if you have a battery, but it as well capable of running without power if you have a charged battery. This is a self-powered bicycle rear light, it is not a bike light.