Switching between 400w MH and 1000HPS

Discussion in 'Lighting' started by The Fast One, Oct 3, 2010.

  1. Do I keep the same distance from the plants when I switch between 400w MH to a 1000HPS? Been under 400w MH for about 3 weeks.
  2. the 1000 will need to be much futher above your plants,

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