Its my first grow and I have bought a 250w metal halide bulb that I am useing at present Wk 3
I also have a 600w HPS bulb
My question is at what stage would/should I change to the 600w ?
Full Version: Lighting Question
What stage are you at now - 3rd week of veg?
Most people with both kinds of light (if they're not vegging under the MH, and flowering under both) would switch over to the HPS at the start of flowering, or thereabouts.
Edit: Oh, yeah - like CV says, you *do* have a 250W ballast *and* a 600W one, don't you?
Most people with both kinds of light (if they're not vegging under the MH, and flowering under both) would switch over to the HPS at the start of flowering, or thereabouts.
Edit: Oh, yeah - like CV says, you *do* have a 250W ballast *and* a 600W one, don't you?
I'm assuming you also have a 600 watt ballast ?
If you're repotting every couple of weeks, at some point it becomes sensible to switch to your big light. In my case it's at approx 4 weeks - when they're in their flowering pots.
QUOTE(Growmore69 @ Apr 25 2007, 06:27 PM) [snapback]931815[/snapback]
Its my first grow and I have bought a 250w metal halide bulb that I am useing at present Wk 3
I also have a 600w HPS bulb
My question is at what stage would/should I change to the 600w ?
I also have a 600w HPS bulb
My question is at what stage would/should I change to the 600w ?
hi ya mate 1st time grower as well what size is yr grow space im only using 250watts bulb for a 3x3x2ft throu whole process
Im only 3 weeks in so the plants are small
What I was thinking would I get better/Quicker growth under the 600w hps than the 250w MH
What I was thinking would I get better/Quicker growth under the 600w hps than the 250w MH
QUOTE(ching73 @ Apr 25 2007, 06:32 PM) [snapback]931825[/snapback]
hi ya mate 1st time grower as well what size is yr grow space im only using 250watts bulb for a 3x3x2ft throu whole process
The grow space is 1.2 x 1.2 x 2.0 mtrs
QUOTE(compostverte @ Apr 25 2007, 06:31 PM) [snapback]931821[/snapback]
I'm assuming you also have a 600 watt ballast ?
If you're repotting every couple of weeks, at some point it becomes sensible to switch to your big light. In my case it's at approx 4 weeks - when they're in their flowering pots.
If you're repotting every couple of weeks, at some point it becomes sensible to switch to your big light. In my case it's at approx 4 weeks - when they're in their flowering pots.
Yes I do have a 600w ballast
4 weeks was what I was thinking
Thanks for that
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