question about lighting a hydro system

Discussion in 'Hydroponic Growing' started by ganjaman99, Jan 4, 2011.

  1. hello everyone,
    i would like to know how many watts per plant i should aim for in a hydro setup. if you need any additional info to help answer my question, feel free to ask. thanks all help will be appreciated.
  2. 50- 100 watts per square foot of growing space. grow enough plants that your canopy is full. it could be 4 plants per square foot or i plant per square meter. you just want a full, well lit canopy. 4x4 for 1000 watter and 3x3 for 600s . 2.5x2.5 for 400. the only thing is the less plants you have the longer you need to veg. if you grow from seed you probably dont need more than 1 plant / 3 square ft. they will fill it by the time they mature.
  3. #3 WhobeBoo, Jan 6, 2011
    Last edited by a moderator: Jan 6, 2011

    An easy 'rule of thumb' is 50-100 W per plant. I use HID (HPS & MH) lights and use 150 W per plant. If your using CFL's, make sure you use the actual watts, not the equivalent wattage. Kamel has a great stickie in the Beginners section regarding CFLs. Not sure what it is for LEDs.

    Good Luck

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