The Sylvania 175 watt Metalarc Metal Halide Halogenures M/MS BT28 Lamps Bulb is a high-quality light bulb designed for facility lighting and maintenance applications. Made by the trusted brand Sylvania in the United States, this bulb offers reliable illumination with an energy efficiency range of A - G. Ideal for use in various industrial and commercial settings, this bulb provides bright and long-lasting light for enhanced safety and visibility.