I was just wondering if anyone here has any experience/info with a MH conversion bulb that apparently runs on an HPS ballast. Is this type of bulb exclusive to HTG, or can they be purchased anywhere else? They run $35 at HTG, plus s/h.
HTG carries some decent digital ballasts that will fire both MH andHPS bulbs, and they're relatively cheap. Might also no something to look at if your interested in playing with different spectrums.
Personally I've never had an issue with using HPS straight through from seed the plant out/harvest(depending on my grow).