Product Description Description: - 【Unique Design】: This bicycle generator light set features a retro design that is both stylish and unique, making it for vintage bicycles or city commuters bikes. - 【Material】: This dynamo bicycle light is made of metal material, which is and can work normally in various harsh environments, providing safe for your night riding. - 【Eco Friendly】: The generator light operates on the principle of friction power generation, using the friction force of the bicycle tire to generate electricity. - 【Waterproof】: The Generator Dynamo Headlight features a waterproof design that allows it to work normally even in rainy weather, ensuring safe and reliability. - 【Easy Installation 】: The generator Bicycle Head Tail Lamp comes with wiring included for easy installation without professional tools. It can be easily installed on your bicycle. Specification: - Style A: Generator (Excluding Connecting Bracket): 10.5cmx5cm/4.13inchx1.97inch, Headlight: 12cm/4.72inch - Style B: Headlight: 8cmx5.5cm/3.15inchx2.17inch, Taillight: 9cmx4cmx5.5cm/3.54inchx1.57inchx2.17inch, Generator: 8.5cmx5.5cmx3.5cm/3.35inchx2.17inchx1.38inch Package Includes: Style A: 1 Set 12V6W Bicycle Generator Light Style B: 1 Set 6V3W Bicycle Generator Light Note: Please allow slightly errors due to manual measurement and different monitors.