Venture Lighting's Energy Master line of retrofit products saves energy by operating on your existing 400 watt M59 ballast. The MPI 360W/BU/EM lamp will consume just 360 watts while producing virtually the same light output as your MH400/U lamp. The high cost of a whole new lighting system or the labor cost of rewiring or installing new wiring is not needed wih Energy Master energy saving retrofit lamps. Simply change the lamp and use your existing luminaires and ballasts.
For applications where safety is an issue, Venture Lighting offers open-rated Energy Master 360W MPI (probe start) lamps, which meet NEC (National Electric Code) requirements. The arc tube is enclosed within a quartz shroud to prevent the outer glass jacket from breaking in the event of an arc tube rupture, passing ANSI containment tests. Lamp types are intended primarily for open-rated fixtures and provide an added measure of safety in enclosed fixtures.
Venture Lighting MPI360W/BU/EM (38029) energy saving Metal Halide Lamps are members of the high intensity discharge family which is the most efficient source of white light today. They have high Efficacy, long life, exceptional color rendering ability, and good lumen maintenance.