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Thread: How expensive is indoor florescent lighting?

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    Agent of Chaos Wolfn's Avatar
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    How expensive is indoor florescent lighting?

    Howdy. I'm about to get into indoor growing and I would like to know how expensive it would be in regards to monthly usage.

    I ordered this light fixture with a 125watt bulb:
    http://homeharvest.com/hydrofarmcompactfluorescents.htm


    My question is: with a 18-hour photoperiod a day, how expensive would this add to the monthly electric bill?
    "I may be on the side of angels, but do not mistake me for one."

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    INFECTED Rball's Avatar
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    i have 8 25 wat bulbs and 3 20 wat tubes and it gave me 45$ more in my bill so just that one wouldnt be more than that.

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    robthered's Avatar
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    shouldnt be more than about 5 bucks a month i'd assume, but it depends on your cost per kilowatt hour. I live in Canada btw and i think the hydro is a lot cheaper here. It might be different down south. I have 8 t5 54 tubes and 4 t8 32 watt tubes ( total of 560 watts) and I saw maybe a 10 dollar difference in my electric bill. Not too sure though cause i wasnt paying much attention lol, but it wasnt anything substantial. For reference, my computer has a 700 watt power supply so running my computer all day is more costly than running my lights.

    Also if you think about it, if you use incandescent lighting in your home, you probably use 60 and 100 watt bulbs which consume more power than fluorescent tubes.

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    sarracenia lover dionae's Avatar
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    If you're concerned with lighting costs use T5 imo. They are very efficient for such a low wattage. Walmart has linkable 2ft T5s for $10. You can link up to five together to work off of one plug.

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    swords's Avatar
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    The T5s at walmart aren't the same as the High Output T5s that I get for my vivarium shelves, HO T5s put out double the light of a standard fluorescent strip light. I get mine here:
    http://www.htgsupply.com/Category-Fl...row-Lights.asp

    The twin tube 4 ft fixture is temporarily out of stock but it's $49.99 and includes the two bulbs shipping to me is $22 for one or two fixtures not sure how much it would be to you.

    Oh, just noticed you already got the giant Hydrofarm CFL, those are Ok ( I have two of those in boxes unused in my storage bin), they are pretty warm so be sure they're the warm plants you've got 'em over.
    Last edited by swords; 01-24-2011 at 06:23 PM.

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    Let's positive thinking! seedjar's Avatar
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    Are you sure that's the two-tube 4' model you're talking about? Looks like $99.95 to me.
    ~Joe
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    swords's Avatar
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    That's the wrong one, gotta scroll down a bit, I get these: http://www.htgsupply.com/Product-HTG...T5-Fixture.asp

    It's nothing fancy just a mirror reflectored "twin tube strip light" style T5 HO. I've bought six fixtures so far and I love em.

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    sarracenia lover dionae's Avatar
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    The HOs really aren't that much more efficient especially for the cost. I have a 2 ft 1 bulb T5 thats 24w. It cost $20. I could buy 2 2ft fixtures from walmart and have 26w of lighting. HO T5 are probably the best but you still wont go wrong with a regular T5.

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