Simson Line USB rear light The USB LED lamp Line is a rechargeable rear light with a plastic housing and mounting strap. The lamp is easy to charge via the USB port of the computer. The 20 LEDs provide a light output of 3 lux. Mount the lamp to the seat post using the rubber mounting strap without using tools. The bicycle light can then be easily clicked in and out of the mounting ring. Specifications: Colour: black Material: plastic Type of lighting: LED Power supply: rechargeable Mounting: to seat post Light output: 8 lux Functions: on/off/dimming/flashing Contents: 1 Rear light 1 Mounting ring 1 USB cable