BAK51-Series explosion-proof tank inspection lamp/Inspection hole lamp/Apperture lamp Applications 1.Hazardous: division1&2. 2.Explosive gas atmosphere: grade IIA,IIB,IIC. 3.Indoor or outdoor(IP55, IP65*). Features 1. Enclosure is cast with aluminium alloy, surface is sprayed with plastic, fine outline; 2. Toughened glass, outer fasteners are made of stainless steel; 3. Built in Spot light electronic booster and 12W tungsten halogen lamp, input voltage is 220V or direct voltage 12V,halogen lamp is with advantages of high light efficiency and colour index.