Cfl Proximity To Foliage

Discussion in 'CFL / Fluorescent Lighting' started by Garden Knowm, Dec 29, 2007.

    Garden Knowm

    Garden Knowm The Love Doctor

    I can not emphasize enough the importance for LIGHT proximity to the PLANT.

    IF You want a big harvest using CFLS.. there should be a CFL within 1 inch of EVERY piece of exterior foliage of the plant!!

    do you understand!!!!


    CANNABIS grows FAST.... you will need to adjust the lights or adjust the plant daily.

    Humboldt Well-Known Member

    I'm not sure if I understand, can you give us an example? pretty please...
    Garden Knowm

    Garden Knowm The Love Doctor

    A perfect light set up would present every leaf on the plant with a CFL BULB 1 inch or less from the LEAF...

    ONE 43 watt bulb may provide this type of coverage for 8 leaves.

    Of course, this may be impossible... but it is the ideal situation...

    Lights should surround the plant... they should not just be from the TOP...

    of course there are exceptions...

    does that make more sense?
    Frank Nitty, Mello136 and Trent1080 like this.
    Garden Knowm

    Garden Knowm The Love Doctor

    see how the CFLs are on the top and all the sides of the plant...

    IT IS STILL NOT PERFECT - not even close.. the plants on the far right need at least 1 more CFL...

    these lights are great at 1 inch... but beyond 1 inch they start LOOSING lumens.... it is important to give the leaves as much light as possible.. ALL THE LEAVES... low branches, side branches, top branches.. etc

    this is another reason it is important to flower early... when using CFLS...

    it is not practical to grow big plants with CFLS because it could easily take 40 CFLs to cover a 5 foot pant... LOL

    Attached Files:


    Humboldt Well-Known Member

    Thanks for elaborating and for the pic, very cool, I agree, closer the light and more surrounding is better, you're most certainly correct about the size of plants, I have learned that on a first hand basis....

    Not a good idea to grow large plants, no matter how much cfl light you may have...
    Boecyfus likes this.

    thewr#1 Well-Known Member

    Good to know, atm my plant is 4 feet tall or so, first attempt didnt top them and veged for longer then i should have. There are some pics in this forum somewhere dont know how to link other threads.
    Garden Knowm

    Garden Knowm The Love Doctor

    Hey THE,

    you can go to the page where your picture IS and then copy the URL and paste it in this thread.. or just insert your photos here.. I would like to see them..

    trickster likes this.

    420bugmenot New Member

    so basically you want so many fucking cfls that you realize you just spent enough money on cfls that you could have had a 600hps and had 4x the useful light as you have now.

    NathanGrws4200 and Reporichter like this.
    Garden Knowm

    Garden Knowm The Love Doctor

    yes!!! sort of...


    But this does not rule out, that CFLS can be great lights.. especially for small spaces, beginners, clones, small grows, hobbiest, people who don't want to go to the hydro shop and many more reasons...

    cfls are cool :)

    upinchronic1 Well-Known Member

    Hey Gk, do you use both lighting?, cfls and hps that is, and have you personaly done any experiments or made any observations of the buds grown from both lights? A little off topic but im reall curious about the subject.
    bushdoctordyl143 and Boecyfus like this.
    Garden Knowm

    Garden Knowm The Love Doctor

    yes... i have witnessed a few grows... :hump:

    you can actually see a few of the grows i WITNESSED if you goto and watch the trailers...

    Here are some pictures too...

    What subject are you curious about?


    Attached Files:


    dippy Active Member

    hi to all ,I'm a complete novice on hear and still cant work out how to post threads and shit, im on my first grow with 8 youngladies in my diy flowering room im kinda using sog but im making it up as i go mainley from reading all your posts so thank ya all x i have four or five diffrent strains and they have now been flowering for 5 weeks looking in forum picks there doing really well , any way to the point i started them flowering under a 250watt invirolight for three weeks then i swapped that for a 400hps to fatten them up MY QUESTION was this a good idea ? any advise would be ace x

    Attached Files:


    upinchronic1 Well-Known Member

    Well those are some nice pics of hps grows, what i curious about was if you notice any difference between the two types of lighting, cfl and hps, in your own growing endeavers or your "witnessed" grows. Ill check out seemore though. :peace:

    snaggy Active Member

    I understand that you want the bulb as close as possible to the plant for maximum growth, etc.

    But does lumens not come into play also?

    My question is........
    If a 43 watt cfl is 1 inch away form a plant.
    And a 250 watt cfl is 6 inches from plant.

    Would the performance be approximately the same for each plant?
    Do you still need the 250watt cfl 1 inch from plant to perform the same?

    upinchronic1 Well-Known Member

    ahh well the trailer almost had a tiny trace of a peice of a sliver of information for my question. Ok so on the subject of potency: Cfl vs Hps? What is your personal view? Im intrested in what YOU think.
    Garden Knowm

    Garden Knowm The Love Doctor

    Hey SNAGGY... in general, you want to put lights as close as you can without burning your plants... especially with fluorescents...

    Garden Knowm

    Garden Knowm The Love Doctor

    WHAT gets you the most HIGH.. the highest.. HIGHER?

    CFL bud or HID bud.. is this the question?

    I don't know :( :confused:

    You know Chronic... when I smoke I enjoy all the HERB pretty much the same... I like to smoke.. put on some sunglasses and play frisbee for hours with an occasional dip in the ocean to snap me outta the fog.. i like to stay away from food and BE WARM in the suns rays...

    I must admit that I am not very critical about herb.. OTHER THAN AESTHETIC and TASTE....

    upinchronic1 Well-Known Member


    jolly8541 Well-Known Member

    I've been growing with cfl's for almost a year now. I went that route for cost, b/c I'm just getting into growing. I've harvested 5 separate crops of plants numbering from 3 to 6 plants. My first plants were pathetic like 17 grams of wet bud per plant. Two days ago I harvested 3 plants and got about 150gr per plant. I had one cola from an 15 inch tall plant that weighed 57 grams by itself!

    As far as potency, its some of the stoniest bud around. I'm still growing bag seed and the bud has been killer. After I hone my skills with the cfl's I'm ordering some Ak-47 seeds and investing in hps lights.
    Boecyfus likes this.

    upinchronic1 Well-Known Member

    Ohh man 17 r u kidding? jk... That beats my fist harvest though. i know know your all jealous, i got 10.5 grams wet weight:hump: on my first grow. I grew it the best i could in its flowering stage but it was veged in almost rock solid earth for its fist month and a half.

    Anyways, man great improvement. 57 gs? nice man. You must have been doing some bulb upgading heh? Got any pics of your grow? Love to see them.

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