ODanksta
Well-Known Member
When I got serious about growing in '05 and '06 I didn't really understand about ballasts and strong bulbs. So I ended up with a half-dozen different set-ups. I had MH and HPS ballasts and bulbs in 400W and 1000W. Here is what my years of experimenting has shown me --
* MH bulbs run hotter at 400W and 1000W. I moved plants closer and farter from the bulbs to watch them. MH bulbs burnt plants at 12 inches. HPS mostly didn't.
* Seedlings and clones grow bushier during veg with MH. S'lings @ HPS tend to stretch and fall over. (Because of the heat factor I still veg with a 400W HPS.)
* Plants do seem to thrive when they are exposed to both bulb types in their lifetime. Argues for the traditional MH for vegging and HPS for flowering mantra.
Good luck, BigSteve.
Lol you said farter