HQI ballasts a bit of a misnomer. The term "HQI" only seems to exist in the aquarium industry. I believe it actually came from the bulb mfg themselves, "Halide Quartz Iodide", something like that anyways.
Ballast mfg don't list such a thing. They market ballasts based on the ANSI specs as mentioned below..
Metal Halide
M130 - 35/39 watt MH
M110 - 50 watt MH (standard and pulse start)
M85 - 70 watt MH (double-ended and BiPin lamps)
M98 - 70 watt MH (standard, pulse start, and operates some double - ended and BiPin lamps)
M139 - 70 watt MH (ceramic metal halide, some double - ended, and some BiPin lamps)
M90 - 100 watt MH (standard, pulse start, and operates some double - ended lamps)
M91 - 100 watt MH (double-ended and BiPin lamps)
M140 - 100 watt MH (ceramic metal halide, some double - ended, and some BiPin lamps)
M81 - 150 watt MH (double - ended and BiPin lamps)
M102 - 150 watt MH (standard, pulse start, and operates some double - ended and BiPin lamps)
M142 - 150 watt MH (ceramic metal halide, some double - ended, and some BiPin lamps)
M107 - 150 watt MH (energy saving probe start / Replaces 175 watt probe start lamps)
M137 - 175 watt MH (pulse start and some European lamps*)
M57 - 175 watt MH (standard probe start and some high pressure sodium lamps*)
M58 - 250 watt MH (standard probe start and some high pressure sodium lamps*)
M80 - 250 watt MH (double-ended and some European lamps*)
M138 - 250 watt MH (pulse start and some European bulbs*)
M59 - 400 watt MH (standard probe start and some high pressure sodium lamps*)
M135 - 400 watt MH (pulse start and some European lamps*)
M128 - 400 watt MH (pulse start lamps)
M47 - 1000 watt MH (standard probe start and some high pressure sodium lamps*)
M141 - 1000 watt MH (pulse start, double ended, and operates some European lamps)
M48 - 1500 watt MH (probe start lamps)
M133 - 1500 watt MH (pulse start, double-ended and some European lamps)
M134 - 2000 watt MH (pulse start - double-ended lamps)
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-=Bryan=-
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