BRAKE LIGHTS & EMERGENCY LIGHTS - An integrated acceleration sensor detects driver braking and signals it with LEDs that light up. In case of emergency braking, all LEDs flash and warn rear traffic of the dangerous situation - for greater safety. VISIBILITY - The Light Guide ensures lateral visibility. The rear light also has a built-in Z-reflector. EASY INSTALLATION - The rear light has a standard spacing of 50mm between the holes and can be installed on the luggage rack in minutes. VOLTAGE AND POWER CONSUMPTION - The EOX RL RACK operates in a voltage range of 6 to 48 volts for a power consumption of 0.8 watts. WEATHER RESISTANT - The rear light is IP44 water resistant. PERFECT PARTNERS- On the SIGMA homepage you can check if your e-bike can be connected to EOX RL RACK BRAKE. Delivery: The rear light for electric bike comes with mounting material. The tail light weighs 29.8g (bracket included)