This taillight from Busch + Müller runs on the dynamo and produces a super bright red light. The taillight has a constant red light and you are visible up to 300 meters! It can take a beating and is waterproof. With the included mounting material you easily mount the rear light on your carrier. Specifications: Color: black Material: plastic Distance between mounting holes: 50 to 80 mm Dimensions: 5 x 11 x 2 cm (L x W x H) Lighting type: LED The rear light works on the dynamo. The rear light can be mounted on the luggage carrier. Contents: 6 Tail lights 12 Clamps 12 Bolts 12 Nuts