HID Lamp brightness 5000 LM3 times brighter than other torchesLumination distance 1.2km to 1.5kmWorking duration before recharging 2.5 hours? hour charging duration and can recharge in carWater-proof and quake-proofLamp lifespan 2200 hoursSuitable for camping, search and rescue Replacable Li-ion battery with chargerBetter vision even through smoke and fog (yellow light)