... proof light 2. explosion proof grade:ExdIIBT5 3.IP67 4.hazardous area light ,explosion-proof lightLamp Body MaterialAluminum + AlloyLamp Luminous Flux2400lmLamp Luminous ... station, substation, the military base,etc. Zone I and Zone ⅡHazardous Locations, Zone 20, Zone 21, Zone 22 and Ⅱ A, Ⅱ B ...