Is a 400 watt HPS Enough?

Discussion in 'Grow Room Design/Setup' started by Kolchak420, May 6, 2011.

  1. In a 36” wide by 27” deep by 40” tall grow room, is a 400 watt HPS bulb enough to flower 5 plants?
  2. yep... with such a small space.. make sure to air cool the light...
  3. when u flower ur plants will stretch, you will have to keep short plants.
  4. Thats less then 4' tall :eek:... Sounds like your gonna have to LST the shit outa them... And as mentioned good exaust is key with a 400w in that space... good luck.
  5. The bulb will be awesome in that space if you can air cool it and control your temps. I think you'll be pushing it with 5 though. I have a very similar size cab, and once the stretch starts, they either get tall, or wide.

    My 20x47 only holds 3 plants in 3gal smarties And a few 2L clones.

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