Features1High-Lumen Output: Boasting 400 lumens of brightness these bicycle lights cut through the darkness for enhanced visibility and safety during night rides. 2Rechargeable Battery: Equipped with a 2000mAh battery these lights offer long-lasting illumination reducing the need for frequent charging. 3Waterproof Design: Designed to withstand the elements these lights are for all weather conditions ensuring reliable performance even in the rain. 4Rotating Mount: The included rotating mount allows for easy angle adjustment ensuring the light is always directed where you need it most. 5Durable Construction: Made from high-quality aluminum alloy and carbon fiber these lights are built to last withstanding the rigors of daily use.SpecificationMaterial: Aluminum Alloy / Carbon Fiber / PlasticSet 1: 160240000C00:Material: Aluminum Alloy, BlackSize: Headlight: 10.3 x 4.1 x 2.3cm / 4.1 x 1.6 x 0.9in,Mount: 18 x 10.1 x 4cm / 7.1 x 4 x 1.6inWeight: 290g / 10.2ozSet 2: 160240000B00:Material: Headlight - Aluminum Alloy, Mount - Carbon FiberSize: Headlight: 10.3 x 4.1 x 2.3cm / 4.1 x 1.6 x 0.9in,Mount: 16 x 3.4 x 0.4cm / 6.3 x 1.3 x 0.2inWeight: 250g / 8.8ozSet 3: 16024420000:Material: Aluminum Alloy, BlackSize: Headlight: 10.3 x 4.1 x 2.3cm / 4.1 x 1.6 x 0.9in,Mount: 12.8 x 5.2 x 3.7cm / 5.1 x 2 x 1.5inWeight: 270g / 9.5ozSet 4: 16024540000:Material: Headlight - Aluminum Alloy, Mount - Aluminum Alloy/PlasticColor: BlackSize: Headlight: 10.3 x 4.1 x 2.3cm / 4.1 x 1.6 x 0.9in,Mount: 10 x 4 x 3.5cm / 4 x 1.6 x 1.4inWeight: 250g / 8.8ozPackage ListPackage List for Set 2 (160240000B00):1x Bicycle Headlight1x USB Charging Cable1x Instruction Manual1x Bike Computer Mount6x Screws6x Screw Washers2x Wrenches1x Bungee Cord3x Mounting Bases1x Adapter1x Suspension Lamp Bracket