... Overcharge and over discharge intelligent protection, Extended battery and lamp’s life.Lighting Time: for the main light, continuous ... for all kinds of application, like coal mining, marine using, exploration working, flood prevention, tapping rubber, outdoor adventure, fishing, hunting, ... 20 4 IlluminationStart of Lighting>3000Lx1m away from the lamp Lighting for 11 hours>1500 5Battery Cycle LifeMax ...