AGPtek 800LM CREE XML T6 LED Bike Bicycle Light HeadLight HeadLamp With Rechargeable Battery Pack and Charger for Riding, Camping,Outdoor and Other Activites Waterproofing design Aluminum alloy casing Aluminum alloy reflector 3 switch Mode: High / middle/Flashing Perfect headlamp fit for outdoor sports, such as camping, traveling, hiking. Combined with four 18650 batteries, 3 hours of continuous work. Enclosure with aviation aluminum alloy, CNC machining, anodizing surface treatment.