Sorry to revive an old thread, just thought someone might be interested in my experiment. I wanted to know if I could run cmh's on standard high frequency electronic ballasts as there wasn't sufficient information out there pertaining to that.
Background:
-2x3x5
-2x400w hps
-wing reflector
-air cooled glass diy enclosed top
-adjustable ballasts run at 300w(for 315 cmh)
Lights ran without issue for two days. Then on the third day, as I was in the next room watching tv; all lights, tv, stereo all shut off for roughly five seconds before powering back on. I immediately checked the box and found the lights off. Everything else had turned on and worked fine except the lights in the flower box. After checking all breakers, fuses, panels and connections I switched the cmh bulbs for the hps; fired up no problem. The cmh bulbs are intact without any apparent alteration and no breakers blew there having been four between bulbs and main power. So I am inclined to believe the bulbs overheated emitted an EMP temporarily shutting off power to the rest of my house without damaging anything.
Thoughts?