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Thread: What Kelvin's for flowering auto's?

  1. #11

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    Quote Originally Posted by Blue61 View Post
    I get what you are saying MC but I guess I should ask do you think the red would help with bud density at all?
    Also would it help with tric production?
    Blue for veg, red for flower is the recognised combination. I now use a dual spectrum bulb & am pretty convinced that veg appreciates a bit of red & flower like the blue too - a bit like nature supplies I suppose...
    It's Not What You Know, It's What You Can Prove

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  3. #12

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    Quote Originally Posted by Dionysos View Post
    Never done a side by side test but from my research. The red light will decrease stretching and less internodal growth. The less energy the plant puts into stretching and stem growth will have to go somewhere. In theory, more red light should lead to denser buds.
    Not positive on the tric production though.
    My experience is the opposite. When I vegged with cmh vegging lamps, ie. more blue, it really messed up my scrog. At the time they normally would have been growing through the screen and be flipped to 12/12, they were only half way to the screen. About 4 or 5 times wider than they were tall and really short internodes.

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  5. #13

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    Quote Originally Posted by M_C View Post
    Blue for veg, red for flower is the recognised combination. I now use a dual spectrum bulb & am pretty convinced that veg appreciates a bit of red & flower like the blue too - a bit like nature supplies I suppose...
    This is the way I have been thinking. Only used all blue the first run because that
    was what I read about autos. Now having grown them I think I am going to go
    half red and half blue.

    Hopefully some others will chime in too.

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  7. #14

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    Quote Originally Posted by Farmer Geddon View Post
    My experience is the opposite. When I vegged with cmh vegging lamps, ie. more blue, it really messed up my scrog. At the time they normally would have been growing through the screen and be flipped to 12/12, they were only half way to the screen. About 4 or 5 times wider than they were tall and really short internodes.
    Thanks for the info Farmer Geddon.

    I will be running autos and will not be doing a scrog. Plan on fimming and super cropping pretty
    much like I did back in the day with photos. More a sog and get a nice even canopy.

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    Id run 6 red 2 blue tubes.

    Bear in mind hps is 1700-2100K

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  11. #16

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    Quote Originally Posted by gardro View Post
    Id run 6 red 2 blue tubes.

    Bear in mind hps is 1700-2100K
    Appreciate you dropping in Gardro. Should I run um like that through out or just in flower?
    Maybe run 6 blue and 2 red during veg?
    I see your knowledge on lighting all around the forum and would love your input on this.
    Thanks

    Also what is your opinion on red effecting density and tric production.

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  13. #17

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    Quote Originally Posted by Blue61 View Post
    Appreciate you dropping in Gardro. Should I run um like that through out or just in flower?
    Maybe run 6 blue and 2 red during veg?
    I see your knowledge on lighting all around the forum and would love your input on this.
    Thanks

    Also what is your opinion on red effecting density and tric production.
    You could go for 4 and 4 for veg but the 6R2B would be fine right through ( similar to 3500K )

    Blue and UV have much more effect on trichs but you need the red there also.

    But

    Blue inhibits growth, in excess

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