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Pulse Start Metal Halide (PSMH) Ballasts are the newest technology in metal halide (MH) products. There are applications that pulse start are geared to like colder temps and high or far distance to light. The pulse start product line exhibits some energy saving qualities over traditional metal halide units. For example, the regular 400 watt metal halide light fixture output is approximately 33,000 lumens, which is equal to 320 watts for a PSMH fixture with a lumen output of 32,000 (a savings of over 80 watts). Another big difference to from metal halide to PSMH is the start up time for the lamps to come to full brightness. It takes 5 to 8 minutes for the metal halide and approximately 2 to 3 minutes on the PSMH. These lamps are ideal for parking lot lighting, warehouse lighting, retail store lighting and much more. Be sure to make the correct selection for your replacement ballast because a metal halide ballast will not control pulse start lamps and vise versa. There are also several wattages and voltages that the ballast may be from 120, 208, 240 or 277 which in the industry is called multi-tap, multi-volt, or quad tap. There is also a 480 volt, usually for older applications. If you have any questions please feel free to call our staff. The easiest way to get the right product is to call with ballast part number of lamps part number which it is controlling. 

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