SecurityIng 2000Lm 4 x LB-XL LED T6 Bicycle Light + 6600mAh Battery Pack for Hiking, Riding, Camping and Other Outdoor Activities Cree T6 LED bulb provides condensed light and long exposure distance. Applies the high efficient booster circuit to the internal wiring, can utilize the batteries to a maximum extent. Intelligent circuit control, 3 switch modes, 2000 lumens brightness. Perfect item for your traveling, hiking, cycling and other outdoor sports. Waterproof design with the special waterproof connector and rubber material suit for rainy days.