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Thread: wondering how far away i should start with my light (explain more in forum)

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    Default wondering how far away i should start with my light (explain more in forum)

    hey guys and girls i have four plants that are about 5 weeks old,they have been transplanted once from solo cups into the 1 G containers and will be transplanting in the next couple weeks into 5 G, they are in a home made tent atm with four 2FT T5's which is equal to about 100W total, my question is i have my other tent which is 4x4 with a 600W M.H bulb how close should i put this to these girls??? i dont want to shock them with to much light or heat because it will be about 5-6 degrees C more and also have WAY more light 6 times to be exact dont want to hurt them!! heres some pics i took today, normally with good size plants i can put it 20 inches away roughly i have a cool hood with 6 inch fan
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    Last edited by friendlygrower; 27-09-18 at 06:13 PM.

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    G' (28-09-18)

  3. #2

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    20" sounds good to start. If you are worried about stressing them you could always start at 30" and lower the lights a few inches daily as they adjust.

    I tend to do the opposite. Start with too much light and then back off the lights if I see light stress. This is not a good idea as it slows down growth.

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    G' (28-09-18), GEORGE (27-09-18)

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    Maximum close height with 600W MH is 16", so work from there up ward, 20" sounds about right to start with.

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    CityDweller (27-09-18), G' (28-09-18)

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