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Quick Question About Led Grow Lights...pls Help!

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  • #1

    Quick Question About Led Grow Lights...pls Help!

    Hi all,

    So I bought the Mars Hydro 300 LED grow light.

    The question is related to the set up: Does the light have to be hanged (set up 2 pic) or can I place it on top of two timber battens ensuring that the line of light is not obstructed (set up 1)?

    The only concern I have is by placing it on top of two battens, do I risk overheating the lights?

    Look at the pics for more clarification:
    Attached Files
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  • #2
    Not an expert on these so with that proviso I'd say they'd be fine touching the battens.

    If I was doing it I'd set up a couple roughly as a test rig then switch it in in a room where I was going to be for a few hours watching TV or whatever, to see how hot they got. If you try this, don't forget to switch off if you leave the room.

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    • #3
      I'd attach the light to chains so you can raise the light as the plants grow, LED lights only needs to be a matter of inches away from the plant as they do not get hot.
      Last edited by Bigmallly; 27-03-2018, 09:20 AM.
      sigpic“Gorillas are very intelligent, but they don't have to be as delicate as chimps -- they can just smash open the termite nest,”
      --------------------------------------------------------------------
      Official Member Of The Nutters Club - Rwanda Branch.
      -------------------------------------------------------------------
      Sent from my ZX Spectrum with no predictive text..........
      -----------------------------------------------------------
      KOYS - King Of Yellow Stickers..............

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      • #4
        Have a look through this thread, a lot of the photos are missing but there are a few on the later pages:

        https://www.growfruitandveg.co.uk/gr...lights-16.html
        sigpic“Gorillas are very intelligent, but they don't have to be as delicate as chimps -- they can just smash open the termite nest,”
        --------------------------------------------------------------------
        Official Member Of The Nutters Club - Rwanda Branch.
        -------------------------------------------------------------------
        Sent from my ZX Spectrum with no predictive text..........
        -----------------------------------------------------------
        KOYS - King Of Yellow Stickers..............

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        • #5
          This is mine I knocked up last year with self adhesive LED strips:

          Click image for larger version Name: IMG_20170208_183825.jpg Views: 2 Size: 89.1 KB ID: 2376983
          sigpic“Gorillas are very intelligent, but they don't have to be as delicate as chimps -- they can just smash open the termite nest,”
          --------------------------------------------------------------------
          Official Member Of The Nutters Club - Rwanda Branch.
          -------------------------------------------------------------------
          Sent from my ZX Spectrum with no predictive text..........
          -----------------------------------------------------------
          KOYS - King Of Yellow Stickers..............

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          • #6
            Agree with Mally..better to have them hanging on a pulley type device to raise and lower the height
            I dream of a better tomorrow, where chickens can cross the road and not be questioned about their motives....


            ...utterly nutterly
            sigpic

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            • #7
              Thanks a lot guys for your responses, appreciate it.

              I found the light doesn't get warm on the condition that the fan and vents are left unobstructed.

              However, adjusting the height of the LED is a problem. Bigmallly: How did you overcome this problem with your set up?

              Also even though LEDs give out very less heat, the spec details different heights for the different stages of growth (e.g. 18 inches for veggie stage, 12 inches for flowering). I think the theory is plants grow up to the light. If left too close, they stop growing up and start concentrating on flowering. (Let me know if I've gone bonkers)

              [thanks for the link, I'll be sure to go through it but there's so many pages]

              Comment

              • #8
                Originally posted by greenman001 View Post

                Also even though LEDs give out very less heat, the spec details different heights for the different stages of growth (e.g. 18 inches for veggie stage, 12 inches for flowering). I think the theory is plants grow up to the light. If left too close, they stop growing up and start concentrating on flowering. (Let me know if I've gone bonkers)
                I've also seen on some US website that deal with the growing of medicinal c*****s about something called Light bleaching, but I'm not sure if that applies to chilli plants :S
                Last edited by Bren In Pots; 04-04-2018, 04:46 PM. Reason: edited with *****

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                • #9
                  looking at the fitting there looks to be "eyes" that chains could be attached to.

                  I used cup hooks above light fittings to raise and lower

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                  • #10
                    Originally posted by greenman001 View Post

                    However, adjusting the height of the LED is a problem. Bigmallly: How did you overcome this problem with your set up?
                    The lights could be at a fixed height but the seedlings below are raised to the appropriate height. That way you can cater for plants of all sizes whereas, lowering the light means its a standard distance away from all the plants.

                    PS It would be better is you didn't use the Ca*****s word on here as it attracts the spammers. Perhaps you could edit it before the Mods spot it.

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                    • #11
                      I liberated from the wife one of those free standing clothes racks , hang the light from the cross rail which adjusts up and down easily

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                      • #12
                        Originally posted by veggiechicken View Post
                        The lights could be at a fixed height but the seedlings below are raised to the appropriate height. That way you can cater for plants of all sizes whereas, lowering the light means its a standard distance away from all the plants.

                        PS It would be better is you didn't use the Ca*****s word on here as it attracts the spammers. Perhaps you could edit it before the Mods spot it.
                        oops I tried editing it, but when I click the "save" button, nothing happens

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                        • #13
                          Originally posted by greenman001 View Post
                          oops I tried editing it, but when I click the "save" button, nothing happens
                          I've edited it.
                          Location....East Midlands.

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                          • #14
                            Originally posted by Bren In Pots View Post
                            I've edited it.
                            Thanks Bren

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                            • #15
                              Originally posted by greenman001 View Post
                              I've also seen on some US website that deal with the growing of medicinal c*****s about something called Light bleaching, but I'm not sure if that applies to chilli plants :S
                              Yes it does apply.

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