The main body is aluminum alloy material, waterproof and anti - fall. The lamp beads are highlighted in the XPG at 350 lumens with a range of about 300-400 meters. Built-in rechargeable polymer battery, battery capacity 850MAh, product 5 gears, first gear highlight, second gear medium light, third gear low light, fourth flashing, fifth long press three seconds to close. Lighting time: highlight 3 hours, light 4 hours, light 6 hours.