SecurityIng&reg; Waterproof 3200 Lumens LED Bicycle Light Super Bright Lighting Lamp LED Bike Light Headlight with 8.4V 4800mAh Rechargeable Li-ion Battery Pack & Charger for Cycling, Travelling, Camping, Hiking and Other Outdoor Activities Simple one button operation, intelligent circuit control, 4 working modes for High / Middle / Low / Strobe. Made of high quality T6063 aircraft aluminum alloy, and the surface utilizes black light oxidation. High quality aluminum alloy reflector, high efficiency light output. Designed with excellent cooling system, widely used in cycling, camping, fishing and mounting etc. Comes with 8.4V 4800mAh battery pack. And the rubber ring makes the head lamp install on bicycle easily.