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Thread: Another Lighting Q's

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    Another Lighting Q's

    Well just like Kath I will be getting a 4- tier mini "greenhouse". I want to know how many light fixtures do I need. Will I need a fixture on each rack or one for every two tiers? Can I see pictures of how other people set up there grow rack?Thank you and sorry if I stole a thread or something

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    The Consuming Flame EdaxFlamma's Avatar
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    http://www.terraforums.com/forums/sh...ght=grow+shelf

    http://www.terraforums.com/forums/sh...ght=grow+shelf

    Just throw "grow rack" or "grow shelf" into the search and you'll get a few nice pics. Lighting is covered in most too. Personally I use 2 -4' 40watt fluorescent fixtures per shelf for a total of 4 bulbs and I think this is pretty much the most common way.

    Hope that helped,
    -J.P.
    Trying to rebuild. Feel free to PM me with questions.

    Grow/Want List

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    Okay thanks- but what if you don't want to raise the elec bill by alot. In your experience if a totla of 4 bulbs how much would it cost to run it every month?

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    What is and what should never be Crissytal's Avatar
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    A few dollars. The shop lights like are seen on my grow rack don't use much electricity at all. They run something like 15 to 16 hours a day.

    Crystal

    Edit: There's a thread on here somewhere that calculates the exact amount of electricity a bulb will burn over a certain period of time.

    Edit again: http://www.terraforums.com/forums/sh...5&postcount=11
    Last edited by Crissytal; 08-03-2008 at 11:14 AM. Reason: edit
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    Lover of Mountains nightsky's Avatar
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    I am using a rack with 2 shelfs, each with 4 - 40 watt bulbs running 16 hours a day.

    I pay $.07/kwh.

    So -

    320 watts per hour, times 16 hours a day, times 30 days for your average month = 153.6 kwh. Times that by .07 = $10.75 per month. 8 bulbs though.

    What's killing me now is my air conditioner. With the temps we've been getting the a/c is running about 21 hours a day at 1800 watts per hour, it's expensive!

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