Simson Tunnel rear light This Simson Tunnel rear light is specially designed for city, trekking and hybrid bikes. The light has an automatic on and off function. The lamp reacts to light and movement and thus determines when it does or does not turn on. The rear light has no fewer than three red LEDs for a bright light emission, even on the sides of the bike. The modern and innovative design emits the light at an angle of 220 degrees for optimum safety. With the integrated sliding system, the distance between the bolts can be changed between 50 mm and 80 mm. Specifications: Color: red Material: plastic Type of lighting: LED Type of bicycle: city bike / trekking / hybrid Power supply: batteries (Included) Mounting: luggage carrier Distance between mounting bolts: 50-80 mm German quality mark: K1237 Contents: 1 Rear light 2 AA batteries