Appleton UNILETS A-51 Series Incandescent Factory Sealed Luminaire With Guard, Fixture Type: Ceiling Mount, Lamp Type: 60 - 100 WTT A21 Medium Incandescent, Lamp Wattage: 60 - 100 WTT, Number Of Lamps: 1, Material: Malleable Iron Mounting Hood With Aluminum Adapter, Fixture Wattage: 60 - 100 WTT, Length: 7.06 IN, Width: 7.06 IN, Height: 13-3/4 IN, Housing Finish: Epoxy-Clad And Powder Coat Fixture, Guard And Mounting Hood, Housing Material: Malleable Iron, Ambient Temperature Range: 40 DEG C, Temperature Range: 125 DEG C Supply Wire, Lens Material: Explosionproof And Heat And Impact-Resistant Glass Globe, Hub Size: 3/4 IN, Number Of Hubs: 4, Standard: Group A And B: Class I, Division 1 And 2, Groups A , B, C, D, Class II, Division 1 And 2, Groups E, F, G, Class III, Group C And D: Class I, Division 1 And 2, Groups C, D, Class II, Division 1 And 2, Groups E, F, G, Class III, UL 1598, UL 844, UL E10444, C22.2 No. 250, C22.2 No. 137, CSA 025428, Ideal For Use In Chemical And PetrochemicalPlants And In Other Heavy Process Areas Where Ignitable Vapors, Dust, Moisture And Corrosive Atmospheres May Be Present, Suitable For Use In Wet Locations, Use With Threaded Metal Conduit