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Thread: Light Distance Chart's

  1. #1

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    Exclamation Light Distance Chart's

    MH-Light Distance Chart




    HPS- Light Distance Chart


  2. #2

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    hmmm ive never seen the MH one before. i knew HPS gives greater lumen output per watt than MH but i never realised the discrepancy was so large.

    i wonder if having an extra 14,000 lumens would be more beneficial than more blue light, with a 400w HPS over a 400w MH in vegging; in terms of speed anyway.

    id really like to do an experiment

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    Quote Originally Posted by Bitterfly View Post
    i wonder if having an extra 14,000 lumens would be more beneficial than more blue light, with a 400w HPS over a 400w MH in vegging; in terms of speed anyway.
    I wouldn't of thought so. The right colour spec (MH) for vegging does seem to stimulate them for faster better vegging. With the hps you would get more stretch aswell.

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    is it actually worth using the budget option of cfl or saving some pennies for a hps or mh light instead?

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    Ok already posted this on another thread but then found this one. Thought it better placed in here. Hope they are accurate enough:



    [IMG]http://i44.tinypic.com/2a5bpee.jpg[/IMG
    'there was a young man named jobby,
    who haboured an illicit hobby,
    with renknowned growing fame,
    he put our plants to shame,
    that bright young man named jobby'

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  9. #6

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    Quote Originally Posted by jobby2812 View Post
    Ok already posted this on another thread but then found this one. Thought it better placed in here. Hope they are accurate enough:



    [IMG]http://i44.tinypic.com/2a5bpee.jpg[/IMG
    thats a nice little chart jobby


    ps loving your sig ahhahahah

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  11. #7

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    Me yeah I love it. Oh yeah forgot this one as well.

    Last edited by jobby2812; 21-01-09 at 08:14 PM. Reason: forgot pic

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  13. #8

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    Quote Originally Posted by matbigpen View Post
    is it actually worth using the budget option of cfl or saving some pennies for a hps or mh light instead?
    it all depends how you grow and where ,if you have heat issues then cfl if you are vegging for a short period cfl,if vegging longer i'd use mh for better penetration to lower growth,flowering hps although you can go start to finish with with mh or hps.

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    Quote Originally Posted by lkdj2003 View Post
    I wouldn't of thought so. The right colour spec (MH) for vegging does seem to stimulate them for faster better vegging. With the hps you would get more stretch aswell.
    iv never had a streched plant under a hps.... they have all ways been nice tight and compact real bushy, and fat buds in result. if u can keep it sweatyish 45-75% Rh then ur fine.
    74 for veg and 45 for flower

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  17. #10

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    Dont suppose theres something simular for CFL's?

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