this is a realy good question

[jeffthestoner]

whats better? a 600w hps and use a conversion mh bulb for veg ...of just get a 400w and switch hps and mh bulbs. for 4-6 sea of green plants in a 4'X'4X7' grow tent. 1000 watt is to much electricity for me and heat. these are lumatek digital ballasts.

[jeffthestoner]

dang nobody knows huh..ill try another site

[Ganjninja]

get the 600W and make shure to get lots o fans and a cooltube!:jointsmile:

[NoDrugs4Me]

I was told by a well respected guy on here, sorry for forgetting your name... my short term memory doesn't exist, that lumatek ballasts tend to not work right. Go with a Galaxy. Besides... who wants something PURPLE in the grow room that's not a bud???? :D

[foxysox]

-You can't just 'switch hps and mh bulbs'.
-4 plants in a 4x4 tent is not a sea of green
-lol

[NoDrugs4Me]

Foxy...

why can you not if you have a digital ballast?
the only diff b/t them is the ignitor for the HPS bulb.... switch the ignitor and you can run MH.... i believe digital ballasts usually come with the switch installed....

are you talking about the mogul adapter?