Replaces Osram/Sylvania MP250/PS/BU-ONLY, ANSI M138/O or M153/O
NoteLamps classified as O-type comply with ANSI standard C78.387 for containment testing and may be used in open luminaries. See lamp warning. Color characteristics may vary somewhat from one lamp to another. Time should be allowed for lamp to stabilize in color when it is turned on for the first time or if for any reason its operating position is changed. This may require several hours of operation, with more than one start. Lamp color and output may change temporarily if the lamp is subjected to excess vibration or shock. Lamp color characteristics may change after long accumulated operating time. Use with 4000 Volt pulse-rated sockets only. Performance may not be satisfactory unless operated within specified operating positions. Requires ballast that is designed to operate all popular brands of Metal Halide lamps. 1000W types will operate from H36 conventional lag type ballast for Mercury Vapor lamps at ambient temperatures of 50°F or higher. 1000W types must not be operated at 1500W or higher. This product contains less than 120 nCi of Kr-85. Turn power off before inspection, installation, or removal. Do not use where directly exposed to water or outdoors without an enclosed fixture. Keep combustible materials away from lamp. Do not exceed rated voltage. Use in fixture rated for this product. Do not use lamp if outer glass is scratched or broken. Use only properly rated ballast.