... battery 5) 50,000 hours life BC5200 Anti Explosion LED Emergency lamp Application:Ideal for any indoor or outdoor inflammable or ... explosive places,like chemical industry,exploitation,military work places , emergency lighting when power off.Can be used in Zone 1 ... LED>50,000 hrs Power Supply 220V (work)DC3.5V(emergency)Emergency Mode Runtime36W / 90 minExplosion Proof GradeEx d II C T6Working ...