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Thread: T8 vs. T12 VS. Twhatever

  1. #17
    monkey_Cup's Avatar
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    @Av8t05, thank you very much for your info, i was unaware of the 25watts per square foot

    ---------- Post added at 02:36 PM ---------- Previous post was at 02:33 PM ----------

    @av8tor this may be a stupid question but are you saying you strive for each bulb t0 have 25 watts or would 2, 13 watt bulbs be adequate?

  2. #18
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    Listen to av8tor on this one, monkey_cup, he helped me get the ball rolling on my lighting set-up.

  3. #19
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    Monkey, its just a very broad rule of thumb....

    In other words, if you are trying to provide lighting for a rack 4 foot long by two foot deep... you really need 160-200w of lighting*.

    *Lower intensity plants would be more along the lines of 15-20w per square foot, higher intensity plants 20-25w

    But threre are many more variables at play.... distance to lights, photoperiod, spectrum, reflector efficiency etc etc etc

    If you are just starting out... it can be confusing but plants can don't get enough light dont grow well no matter what else you do, it is the single most important factor.

  4. #20
    rattler's Avatar
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    Quote Originally Posted by monkey_Cup View Post
    @rattler What do you mean by "bulk bulbs".
    .
    i mean i go to Home Depot and buy them by the box for around $20......cheapest i can find....

    from what ive seen the average hobbiest way over thinks the light issue for things like neps, especially when starting out and most their neps are small....there is a place for high powered bulbs in the hobby, if your looking to light a big area, trying to light helis but need to worry bout heat, messing with some dews....

    for the most part, if most your neps are in 6 inch pots are smaller ect a cheap T8 fixture and cheap bulbs work fine...you should be able to set up a 4 foot by 2 foot shelf for bout $50, 3 two bulb four foot T8 fixtures for bout $8 each and a box of 15 T8 bulbs for $22.....

    if your just starting out and dont have a bunch of large vining neps there is really no need to get fancy.....
    cervid serial killer
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  5. #21
    Aristoloingulamata Dexenthes's Avatar
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    I'm thinking about getting some T5's soon. Do they really burn that hot? I felt one in the store as it was on and it didn't seem all that warm.

    If I am using two 4 foot T5 bulbs with a 4 foot terrarium, would the humidity and heat still be an issue?

    LOOKING FOR: N. (argentii x bicalcarata) x {[(lingulata x edwardsiana) x (naga x hamata)] x [(klossii x undulatifolia) x (aristolochioides x rajah)]} Growlist: http://www.terraforums.com/forums/sh...d.php?t=124586

  6. #22
    rattler's Avatar
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    havent noticed to much extra heat on my normal T5's......the HO-T5's for my lil reef tank do put out noticibly more heat.....
    cervid serial killer
    Know guns, know peace, know safety. No guns, no peace, no safety
    I didn't get stimulated but he kept his promise on change, that's about all I got left!
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