Basic product parameters Bulb: LED Product size: 9.6*2.1CM Net weight: 60G Material: aluminum alloy Switch: Press the switch Battery: 1*16340 Charging method: Type-C USB charging Gear position:4 lighting modes of front light: strong light + low light + flash + SOS Waterproof rating: IPX-4 Lumens: 3500 lumens Lighting distance: more than 2000 meters Features 1.The effective distance of lighting can reach more than 2000 meters. 2.Battery display function, when the battery is low, the indicator light will turn red, when the battery is sufficient, the indicator light will be green 3.Waterproof material,Sealed waterproof ring, IPX-4 grade waterproof, can be used in bad weather such as rain and snow. 4.Aerospace-grade aluminum alloy material,Super hard aluminum alloy material, wear-resistant, anti-drop, and long service life.