I doubt that light interruptions like that would cause hermies. Simulated clouds, yeah? It would take an extended effort. I believe that light leaks are a much greater threat.

I have a powerhouse magnetic ballast. It runs nice and clean with an 8 year warranty. Hard to beat that! 400w and I run a ceramic metal halide. Love it so far.

Hey PhatJay, I was looking at the feeding chart in the album under your profile. I left you a message. Nice little chart there although I use botanicare coupled with FFOF.
bigsby Reviewed by bigsby on . My digital ballast just failed mid 12/12 in the 1st week of flower. Bought a new digital ballast last week. Tonight it went off 6 times in total, over a period of 3 hours (about 2 minutes a time and for 5 mins while I removed the new lighting and put my old cfls back in). This is a stable strain that doesn't seem to be prone to stress (i have been growing it for 18 months). I think my girls will be OK, but I would be nice if someone who has had this happen to them, could provide some reassurance. Rating: 5