[Adjustable brightness of bike lights] - The white front light of the LED bike light is equipped with a big bulb, increases the brightness of the lighting by 50%, lighting range of 120 With the waterproof LED display screen, it can show the use time of the bicycle lights and tell you if you need to charge. Press the toggle buttons to choose 5 modes of strong / medium / weak/ flash/ SOS.[Durable and easy to carry] - The LED Bicycle Lights case is made of aluminum alloy, which makes the lamp strong, light and durable. Integrated design, IPX5 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). Equipped with metal hook and 360 bracket, the position of the lighting can be adjusted freely.[Easy to install]: Bike Lights The multi-function headlight comes with a mounting bracket and pen clip design which can be easily attached to the handlebar, it is very convenient for you. The taillight silicone strap is designed with four openings 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 bicycle light, it also can be used as an emergency flashlight, flashlight, helmet headlight for cycling, camping, walking or other night work. It can also be used as a Power Bank to charge your mobile phone and computer. Enjoy greater visibility and comfort knowing that you will be safe at any time of the day.