Another side by side HPS VS DE HPS VS COB LED

Discussion in 'LED and other Lighting' started by MeGaKiLlErMaN, Sep 7, 2016.


    Yodaweed Well-Known Member

    You must live where if you get caught they burn you at the stake, here in colorado prices are much lower .
    Last edited: Feb 3, 2017

    DesertHydro Well-Known Member

    sick video! makes me wanna go hard and get a warehouse :)
    sixstring2112 likes this.

    Hybridway Well-Known Member

    Can we get a full accessment of each room please?
    I feel that 35k will cause a loss in yeild in comparison to 27-3k led. What's your thoughts on that now that you see the limited stretch 35k causes?
    Also, Do you notice a difference in bud/cola size? I fealt like my hps put out bigger but in the end the weight was there for my LEDs w/ 1/2 the wattage.
    Density differences?
    How's everything going all n all w/ the entire grow in general?

    MeGaKiLlErMaN Well-Known Member

    No need to have an argument at all, you can disagree with someone and still respect each other. You only need to do about 10 passes according to the instructions, so that takes maybe 15 seconds for almost an lbs or so.

    Side by sides are my thing and if a test shows that I loose a large percentage then that wont be that way I go, but still its something to think about, currently the bag is backordered into the ground lol.

    its all good, like I said I would rent it not buy till I know how well it truly performs.

    I have alot planned for the future :)
    OLD MOTHER SATIVA likes this.

    MeGaKiLlErMaN Well-Known Member

    For sure I will an in depth look in the near future as well. That will happen as soon as I get these new cameras up and rolling.
    OLD MOTHER SATIVA and Hybridway like this.

    MeGaKiLlErMaN Well-Known Member

    So far so good :)

    Week 7 and soon ill be in heaven. Buds are forming well, no major issues other than some vapor pressure due to lighting heights. The COB bud is more firm to the touch, but both HPSs are stacking hard, The end numbers seem like they will be close from just looking at them.

    The main issue I ran into early on was the Mites, that slowed most everything and they weren't gone till early flower. Darn dogs are NOT going in the grow room anymore.

    Again Im using 4000K 70CRI lights to aim for higher THC with minimal red sacrifices, I will more than likely follow the way of the CRI tests and go for a 3000K 70CRI When I add more COBs in the future.

    As for the stretch, I knew it was coming but it was more than double the height, I blame myself, and Hydro the same amount. Limited stretch gains me alot more to work with for height, Not that I need it for this spectrum but still nice to have. There are over 60 tops on the LED side with the HPS/DE HPS coming in around 20-25 respectively. Now will more colas mean more weight? Or will having less large ones in a much higher quantity keep it even? Not sure, but Ill be able to fill a bathtub with all this bud, not sure why I chose that size measurement... anyways...

    Over all the biggest issue I had was the bugs, wont happen again and after harvest Ill finally clean my whole room out.

    After this run Im going to run my Pineapple Express plant under the DE HPS and a few clones of it under the HPS and COBs, not for a scientific grow but just to see how the lights do with overlap involved. The Mother plant is 6 Months old currently and is pretty big for sitting under a 500W HPS/ now MH light.

    Ill also be popping some Dark Plasma and mixing it with a GG#4 Female, assuming I get a male that is. Assuming that VaderOG doesn't take that on, if he doesn't, Ill also be crossing Ninja Fruit with it, or maybe a 3 way cross of a crossed strain? No matter what its going to be sticky and have sick bag appeal.


    MeGaKiLlErMaN Well-Known Member

    Shameless self bump for the afternoon crowd.
    needsomebeans likes this.
    a mongo frog

    a mongo frog Well-Known Member

    SE HPS buds are off the hook!!!! All the way down they are huge!!!!

    Jerro Member

    Hey fellas interesting trend here... I'm running a new setup with 2 1000 watt SE 6 inch air cooled lights, next to it I'm running 2 cirrus titan 5 LEDs , both running in a 6 site RDWC from current culture same everything we'll see what does better. I can post some pics tomorrow of the setup if anyone wants to see. I should start flowering in about a month.
    a mongo frog and Hybridway like this.
    MMJ Dreaming 99

    MMJ Dreaming 99 Well-Known Member

    Don't let pets in your grow. Geez.
    Jerro likes this.

    MeGaKiLlErMaN Well-Known Member

    Lessons learned lol
    MMJ Dreaming 99 likes this.
    MMJ Dreaming 99

    MMJ Dreaming 99 Well-Known Member


    MeGaKiLlErMaN Well-Known Member

    Same order as usual, DE HPS, HPS, COB. Can't get a great photo but there are a few amber trikes. Not near 10% anywhere, I'm thinking another week of veg so far and the so the HPS side is the only one that I've seen amber, the other two I haven't seen any. Next harvest I'll have a better camera to see the trikes.

    One week more and if I don't see any gains on the LED side it's flush time, same with the HPS, but they might need two weeks.

    EDIT: can't post pictures currently, they will be posted when the sites working properly.
    needsomebeans and Hybridway like this.

    frica Well-Known Member

    Quite a low PPFD you're using with LED though..

    MeGaKiLlErMaN Well-Known Member

    How is 1200 PPFD low?

    frica Well-Known Member

    Your OP states "329.65 PPFD"

    MeGaKiLlErMaN Well-Known Member

    Yup look at the area covered and height of lights, then again at the photos... Once they work lol that was 4x5/5x5 it's in a 4x4. I posted photos of the numbers on there as well, but the point of the OP was for understanding the PPFD compared to eachother.
    Hybridway likes this.

    OLD MOTHER SATIVA Well-Known Member

    "but the point of the OP was for understanding the PPFD compared to each other."

    still i am more cornfused
    ...i notice my hps puts out a LOT of ppf and the cobs need to be close...
    OneHitDone likes this.

    OneHitDone Well-Known Member

    If you check Weednerd Episode 265 @ 36:40 you will find the answer :lol:

    OLD MOTHER SATIVA likes this.

    OLD MOTHER SATIVA Well-Known Member


    so 1000 w led should do better than 1000 w of hps

    the even coverage of leds should make up fpr a pile of those hps watts huh?
    Hybridway likes this.

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