A versatile accessory, the bright XLC CL-E15 flashing light is capable of functioning as a normal rear light as well as an indicator (also known as a turning signal or blinker). Remotely controlled, the light flashes to indicate a left or right turn. Alternatively, it can be left as a steady rear light or flash intermittently. Containing a rechargeable lithium-polymer battery of 3.7V/800mAh with overcharge and over-discharge detection and a micro USB charging cable, the XLC CL-E15 flashing light is a convenient choice. With a handy display to indicate a low battery, you’ll never be caught with a dead battery again.The remote control has an included battery and can be fixed to the handlebar for ease of use.