The Busch & Muller Kite E Brex rear light is an upgraded version of the modern, compact Kite E light. The designers of the German company decided to add a very useful feature. This feature is an advanced brake sensor integrated with the lighting. When the appropriate mode is activated, an additional light strip reacts to the rider's behavior on the road—especially during emergency braking—to better alert other road users. The Busch & Muller Kite E Brex rear light uses LED technology to produce bright, evenly diffused light, and thanks to this wide beam emission, the light remains highly visible even from unusual angles, such as from approaching drivers from the side. The product is designed for electric bicycles and is powered by the e-bike's battery, requiring a voltage of 6-48 V DC. The light is ready for installation on narrow racks (mounting width 50-80 mm). Thanks to its elongated and ergonomic shape, the Busch & Muller Kite E fits perfectly with the sides of a bicycle rack.