1.explosion proof,waterproof 2.20w,40w,60w 3. aluminum alloy housing 4. unique design led explosion proof tube led explosion proof tube:Application:Applied to oil fields, oil refineries, offshore oil platform, power plants, gas stations, oil tanks, wharf, tunnel, pumping station, substation, the military base,etc. Zone I and Zone IIHazardous Locations, Zone 20, Zone 21, Zone 22 and IIA, IIB, IIC ...