... better light color. BAK51-Series explosion-proof tank inspection lamp/Inspection hole lamp/Apperture lamp Applications1.Hazardous: division1&2.2.Explosive gas ... , 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 ...