SecurityIng&reg; 3800Lm 3X T6 LED Bicycle Light Super Bright LED Lighting Bike Lamp with Rechargeable Battery Pack and Charger 3X Cree XM-L T6 LED 3800Lm LED Headlight Headlamp and Bicycle Light. 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. Can be used as Headlamp or bicycle light. Easy to install and use. Perfect item for outdoor sports, such as camping, traveling, hiking; for outdoor sports, such as camping, traveling, hiking.