INDUSTRIAL PERFORMANCE R52 E39 Base Reference 500W, 130V Light Bulb Used. See attached photos. Tested and lights up.The Industrial Performance R52 lamp is a large-format incandescent reflector flood bulb designed for commercial and industrial lighting fixtures that use an E39 mogul screw base and high-wattage specialty lamps. In this family, the R52 designation refers to the oversized reflector shape, and comparable Industrial Performance versions are sold as frosted reflector/flood lamps for industrial and high-bay style applications. With its 500W rating and 130V specification, this bulb is best suited to equipment or fixtures that specifically call for this uncommon lamp type rather than standard building lighting. See photos for the exact markings and condition, and verify wattage, voltage, bulb shape, and base compatibility before installation. LM
