what he said!
i do not see HPS conversion bulbs at HTG.
There are bulbs available to convert HPS to MHi do not think so. HPS ballasts have an igniter, MH do not.
take a look at a supplier and see if they sell HPS conversion bulbs and that will tell you fast enough if my guess was accurate.
there is NO comparison. MH.
That would defeat the purpose, Im doing this to conserve on electricity. Id want to replace the 580w of CFL's with a 400w HPS/MH. I could easily just get more CFL's, but whats the point of running an 800watt CFL setup when you could get bigger yeilds from a much smaller wattage HPS? Even if I had 800w of cfl's, I still dont think they would be as effective as the 400 HPS. But I'm wondering how they'd compare to MH for flowering. I know MH works great for veg, but has anyone flowered under solely MH's before?
get your self a 400W HPS. Vegging under CFLs ain't all that bad.
correct, CFL's work fine for vegging, a lot better than for flowering... however, the MH is mighty for veg so in a perfect world that is the tool to use for an indoor veg chamber.
If you are only going to get one lamp, go HPS.
My plants are already flowering under 600w of CFL's. Dont ask me how I somehow ended up with this many CFL's, but I did. Perhaps at some point i should have stopped to get a more economical and more effective 400w HPS, but I didnt and Im halfway through flowering and wishing I had more light. I mean, dont get me wrong... my plants look great, but I can tell theyd like a bit more light. I think im jus going to say fuck it, and do this whole grow with CFL's. Ill get an HPS when im at a better time... financially.
