Quote Originally Posted by BeFree
Plenty of room. =) go for the 400 watt hps and see about getting a really nice bulb.

There are a few 'enhanced spectrum' flowering bulbs that will help out with your lack of spectrum. Also, between the 2000-2200k range, I don't believe there will be much difference at all.

But, by some theories, including that 660nm red spectrum produces resin most efficiently. I'd go with the 2000k.

But as I said, I don't believe there will be much difference if you were to go with the 2200k. As a suggestion, I'd go with an enhanced type.

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beSafe:jointsmile:
Hi BeFree,
Thanks for your prompt reply
I have more confidence with the 2000 k HPS now, and the 2000 K HPS bulbs are the ones I can get now. If I had a choice , I definately would go for the enhanced type you talking about. I wonder which enhanced type you're talking about.

Like you said, using a 2000k 250W HPS and a 2700K CFL to make up the spectrum difference may sound just perfect but I'm just confused with everyone getting a 400W HPS as if there was no heat problem at all. Now it's my turn, I'm excited and a bit worried of the heat it produces and the cost of Air conditioning bills used to maintained the room temp ( right now it fine and nice weather with wind breeze but it'll get hotter in mid May)

I'm only growing 2 hydro plants and mataining a soil grow mother plant and 3 clones struggling to survive and hopping to have a continuous harvest... ma
Perhapes, a 400W HPS is better in the long run?

By the way, does buying a 400W HPS means there is less need for a couple of 2700K CFL to make up the spectrum difference?

Thanks..~