General Electric GEM400MLTAA4-5 Metal Halide Ballast

General Electric GEM400MLTAA4-5 Metal Halide Ballast is designed to operate 400-watt metal halide lamps across multiple supply voltages. It accepts 120, 208, 240, and 277 volts, enabling use in fixtures wired for different distributions without needing different ballast models. As a ballast, it regulates current to the lamp and provides the required starting conditions to achieve reliable startup and consistent light output in compatible luminaires. This GE ballast is part of the GEM400MLTAA4-5 configuration, intended for commercial and industrial lighting applications that specify a 400W metal halide ballast. When installing, ensure the fixture is rated for 400W metal halide operation and that wiring and ballast configuration comply with applicable electrical codes and the luminaire manufacturer's guidelines. The model naming—GEM400MLTAA4-5—identifies it as a multi-voltage, 400W metal halide ballast from General Electric, suitable for installations where a single ballast must support multiple voltage inputs. Use appropriate mounting, enclosure protection, and thermal management to maintain ballast performance.