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Thread: mh vs hps

  1. #11

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    If it wasnt for the watering issue i would do it but my door isnt very big to the space, so i t would be a real pain, but the plants will be over 1m apart for the main mh vs hps test so it should show the main differences well enough i feel. After all how many lumens does a 400w have after 1m? (i am expecting an answer, especially with your new colour )
    Take it easy out there
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  3. #12

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    Quote Originally Posted by lil rasta View Post
    If it wasnt for the watering issue i would do it but my door isnt very big to the space, so i t would be a real pain
    I understand — It has to be practical.

    how many lumens does a 400w have after 1m? (i am expecting an answer, especially with your new colour )
    That needs more information, such as what beam angle does the reflector have?

    If you use the correct reflector (no overspill) it will be negligible, and light reflected from elsewhere in the space is probably just as likely to be an influence.

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  5. #13

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    Both cooltubes are horizonal so theres glass aswell. And plants inbetween will lower it too.

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  7. #14

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    Ok so heres the pictures:

    Hps is on the left on the room and mh is on the right, i can get them any further apart.
    Check out the tape seal, top marks i would say there




    hps side



    mh side



    The whole space



    Well that will do for now until the plants get going, the floor is open for a debate or any info

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  9. #15

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  11. #16

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    Quote Originally Posted by L View Post
    Interested to see the results in this myself
    Careful how many plants you show though mate
    Theres only 10 but ill be showing 4 most likely as my diary will have 6

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  13. #17

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    Quote Originally Posted by lil rasta View Post
    Theres only 10 but ill be showing 4 most likely as my diary will have 6
    Pretty sure I can see 11 plants in that last picture

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  15. #18

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    Quote Originally Posted by L View Post
    Pretty sure I can see 11 plants in that last picture
    Nah dont think so , its a tomato plant

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  17. #19

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    Ok so after 10 days they are doing fine, hps side has 6 nodes, mh has 5 other than that no difference

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  19. #20

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    Ok so i had a change of plan slightly due to a friends flat inspection, so the plants got a 3 1/2 week veg under 18/6 after 1 week of 12/12 then i put them back to 12/12 2 days ago. Ill get more/better shots when they have sexed.

    ok so i have picked 2 strains to show the difference, chiesel and Pakistani critical kush but the middle one is a wembley.

    Already there are some noticable differences, the mh side is 2/3" shorterr than the hps and the middle is the same as the hps.
    The mh side is a slightly darker green.
    The mh side also is generally wider plants branch wise yet on the hps side the branches are stronger and longer and more upright.
    Node wise they are the same mh or hps side just tighter
    chiesel: 13 nodes
    wembley:13 nodes
    kush:10



    wembley


    middle plant so gets both lights and is a beast.



    MH plants

    chiesel left, kush right



    MH kush
    So tight




    Mh chiesel





    hps



    hps kush



    close up to show how tight the kush's are



    hps cheese


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