How far will my LEDs reach and still effectively bloom?

Discussion in 'LED and other Lighting' started by dankylarry, Nov 14, 2017.


    dankylarry Active Member

    Im rockin 4 vero 29c run from HLG- 320H-C2100B.

    My closet is 10' tall & has some built in wooden shelves about half way up. Because of those shelves (do not wish to rip them out) I only ever thought to use the bottom half of closet for bloom. Then I read Ed Rosenthal's book about 'closet growing' & every diagram in the book uses shelves to maximize growing space. He would usually just hang one HID light at top of the closet. So now Im wondering:

    If I hang my vero rig 9' high, will it still effectively bloom the plants that are on the floor? That would be a 6' distance from canopy if my plants are 3' tall.

    nc208 Well-Known Member

    For that distance you would want reflectors. Is it not possible to attach to a system so you can lower/raise light as you need?
    Roger A. Shrubber

    Roger A. Shrubber Well-Known Member

    no, thats entirely too far, i wouldn't want to try over half of that distance between your canopy and light

    Dave455 Well-Known Member

    Scrog it !!!!!! Bend that gal down and secure the branches !!
    Stephenj37826 likes this.

    Kerovan Well-Known Member

    Definitely not. Not only is it too far away, any shelves would block the light from reaching the bottom even if the lights were strong enough.
    Roger A. Shrubber likes this.

    Airwalker16 Well-Known Member

    A pic would help

    VegasWinner Well-Known Member

    18" to 24" on average is the projection depth of most leds, cobs, etc. If you are more than that distance you are wasting your energy.
    Roger A. Shrubber likes this.

    HemiGrind Active Member

    It will not effectively bloom at 6 foot from canopy. Not saying it won't bloom, but no where near potential.
    18" to 24" as (VegasWinner stated) is where you should start from. Raise/lower as needed to cover floor footprint.
    Good luck :)
    VegasWinner likes this.

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