Skycoolwin 4500 Lumens 4x CREE XML T6 LED Bike Bicycle LED HeadLight With Rechargeable Battery Pack + US plug Charger Cree T6 LED bulb provides condensed light and long exposure distance. Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent Intelligent circuit control, 3 switch modes, 4500 lumens brightness. Waterproof design with the special waterproof connector and rubber material suit for rainy days. Perfect item for your traveling, hiking, cycling and other outdoor sports.