Quote Originally Posted by BOYZNUS
JUST TAKE ONE OF THE IGNITOR WIRES, CUT IT, WIRE EACH END TO A TOGGLE SWITCH, ($2.25), MOUNT THE SWITCH OUTSIDE THE BOX.

SWITCH ON, IGNITOR FIRES FOR HPS.

SWITCH OFF, RUNS MH.

SAVES YA HUNDREDS.

GOOD LUCK
Quote Originally Posted by kindprincess
ditto
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Tommygirl Reviewed by Tommygirl on . MH Conversion Question Ok, I found a 400w HPS ballast that I can afford. At first I thought that it was a conversion ballast that will run either HPS or MH, but it turns out that it simply comes with an MH conversion bulb as well as a regular HPS bulb. What I'm wondering is if that means that any MH conversion bulb can be run by any HPS ballast so long as they're rated at the same wattage, or is that too simple and cheap a solution to spreinging for either two ballasts or one of those really expensive one that Rating: 5