ThatOneDude
Well-Known Member
No. The 150w and smaller CMH lamps run off a pulse start metal halide ballast.
Here is what I understand about the needed ballasts for CMH:
250w and 400w Philips Mastercolor CMH (HPS-Retro White) ------> regular magnetic HPS ballast (ANSI code S50 for 250w, S51 for 400w). Or a digital ballast specifically made for CMH, not the standard digital ballasts we see used in horticulture.
150w and smaller Philips Mastercolor CMH ------> pulse start metal halide magnetic ballast (must be pulse start). Or a digital MH ballast should work but who's got one of those.
This is the same way I understand it also. I only used a 400 watt bulb and ballast so I'm going off of memory but I think Hawk has it dead on.