USB rechargeable bike front/rear light.Aluminum alloy material, durable to use and has excellent thermal conductivity.Integrated design with good sealing craft ensures excellent waterproof performance.4 lighting modes(strong, weak, slow flash, strobe).Small size and easy to carry, large lighting range.Type: Bike LightMaterial: Aluminum Alloy, Engineering Plastic4 Modes: Strong, Weak, Slow flash, StrobeLED Quantity: 3 LEDsBattery: Built-in Lithium BatteryFeatures: Waterproof, Rechargeable, Bright LEDSize: 5.3cm x 4cm x 4cm/2.09" x 1.57& 39;& 39; x 1.57& 39;& 39; (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Bicycle Light1 x USB Cable1 x Tie Strap