Incandescent Lighting Dome, Type 30 Deg Dome, Lamp Wattage 200 to 300 W, Diameter 12 Inch, Material Porcelain, Application Chemical, Petrochemical Plants, Dust, Moisture, Corrosive Atmosphere, Wet Location, Used On A51 Incandescent Factory Sealed Luminaire, Constructional Feature Explosion-Proof, Enclosure Type Class I Div 1 and 2 Group A B C D, Class II Div 1 and 2 Group E F G, Class III, Weight 2.4 Lb