Description: USB Rechargeable Bike Lights - Both lights are USB rechargeable, come with fully charged auto cut-off system function which ensures safety and longer battery life. Adjustable brightness of bike lights - The white front light of the LED bike light is equipped with LED bulb, Press the toggle buttons to choose 4 modes of full brightness / half brightness / slow flashing / fast flashing. Durable and easy to carry - The LED Lights case is made of aluminum alloy, which makes the lamp strong, light and durable. IPX4 waterproof function, can prevent water from any angle (please don't use it under water, heavy rainy day, or other humid conditions for a long time). Easy to install: Comes with a mounting strap clip design which can be easily attached to the handlebar, that fit perfectly into most size seat posts. Both the headlight and the taillight can be easily loosened and fixed and no tools are required. Multi Purpose Bike Lights - Not only as a light, it also can be used as an emergency flashlight, flashlight, helmet headlight for cycling, camping, walking or other night work. Enjoy greater visibility and comfort knowing that you will be safe at any time of the day. Specification: Material: aluminium alloy, ABS plastic Size: 45x45x40MM / 1.8x1.8x1.6inch Package Includes: 1 Set Bike Light