Appleton Mercmaster III 250 PRE-PAK KP Series Ballast Body, Lamp Type: 150 WTT 16000 LM Mogul High Pressure Sodium, Lamp Wattage: 150 WTT, Voltage Rating: 120/208/240/277 V, Number Of Lamps: 1, Material: Copperfree Cast Aluminum (Less Than 4/10 Of 1 PCT) Mounting Hoods, Ballast Bodies, Stainless Steel Hardware And Latch Assemblies, Fixture Wattage: 188 WTT, Amperage Rating: 0.85 AMP Starting, 0.72 AMP Operating At 277 V, Housing Finish: Epoxy Powder Coat, Housing Material: Copperfree Cast Aluminum (Less Than 4/10 Of 1 PCT), Ambient Temperature Range: 55 DEG C, Temperature Range: 90 DEG C Supply Wire, Ballast Type: High Reactance High Power Factor Autotransformer (HX-HPF), Ballast Quantity: 1, Frequency Rating: 60 HZ, Enclosure: NEMA 4X, IP66, Standard: Class I, Division 2, Groups A, B, C, D, Class I, Zone 2, AEx nA nR IIC (Z2), Class I, Zone 2, Ex nR IIC (Z) - CSA Certified, Class I, Zone 2, AEx nR IIC (ZB), Class II, Division 1 And 2, Groups E, F, G, Class III, SimultaneousExposure (Class I, Division 2/Class II, Division 1), UL Listed: E10444, 1598, 1598A, 844, 60079-0, 60079-15, For Use In Marine And Wet Locations, Areas Where Flammable Gases And Vapors Or Combustible Dusts Are Present Under Conditions Defined By The National Electrical Code , Non-Hazardous Locations Where Severe Weather Conditions, Excessive Moisture, Dirt, Dust Or Corrosive Atmospheres Are Encountered, Pulp And Paper Mills, Processing Plants, Chemical Plants, Oil Refineries, Foundries, Manufacturing Plants, Storage Areas, Marine Applications