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URGENT: Which light fixture is better?

Discussion in 'Lighting' started by mathman, Apr 4, 2011.

  1. mathman

    mathman Guru Class Expert

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    Here's how the tank looks like with the Jalli 220W light fixture.
    View attachment 2271

    View attachment 2270

    The light fixture has 4 bulbs each 10,000K and 55W for a total of 220W. The fixture has two independent plugs allowing me to turn on 2 lights first and then the other two at a later time during the photoperiod.

    The other light fixture is made by Current USA and it has two bulbs each 54W and 10,000K for a total of 108W. Here's a picture.

    View attachment 2272

    If you think the 220W is a better choice....do you recommend i use two timers to control each pair of lights...what is the best combination? Meaning how long would you have two bulbs on prior to the other two to come on?

    I am trying to grow: anubias, java ferns, tiger lotus, amazon swords, dwarf baby tears, crypts, and two stem plants which i forgot their names.

    thanx.

    PS let me know if you want more infor.
     
    #1 mathman, Apr 4, 2011
    Last edited by a moderator: Apr 4, 2011
  2. Gerryd

    Gerryd Plant Guru Team
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    If your c02 and other elements are fine I see no reason why the PC fixture would not work with your stated goals....

    I would use two timers so you can have better control of the lighting....
     
  3. mathman

    mathman Guru Class Expert

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    Hi Gerry,

    I am currently using pressurized CO2 and dosing using the EI method. If I use two timers, what do you think about the time period for each pair of lights on the JALLI fixture?
     
  4. Gerryd

    Gerryd Plant Guru Team
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    I have my timing as follows:

    4:00 pm - c02 on
    4:30 pm - first bank of 4 lights on
    5:30 pm - second bank of 4 lights on
    10:30 pm - second bank OFF
    11:30 pm - c02 OFF
    12:00 midnight - first bank OFF

    This works for my schedule. It allows the c02 to build up a bit before all the lights are on fully and has a small ramp up/down cycle.

    Hope this helps.
     
  5. mathman

    mathman Guru Class Expert

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    Anyone else with an opinion? Thanx.
     
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