1. We are currently experiencing issues with viewing and uploading images, our team is working on the issue.
    Dismiss Notice

Need advice / opinions - 2 400 watt hps vs 600w hps in 4x4 tent

Discussion in 'Indoor Growing' started by growin-Jables, Oct 18, 2017.

  1.  
    GreenLegend420

    GreenLegend420 Well-Known Member

    its all about the penetration imo iv read that denser buds are coming from 400hps than a single 315cmh. i have the hydrofarm 315 setup used it in veg but i would trade it for two 400hps ballast anyday.

    i also have 600hps and 1k hps. Maybe ill run side by side my 315 vs my 600hps but i dont think it would be to fair on the single 315. The 1k would absolute rape two 315's imo. The 1k will produce long hard colas so dense you can throw them through a window.
     
  2.  
    GreenLegend420

    GreenLegend420 Well-Known Member

    as far as the thread goes i got here because i want to also try 2 x 400hps in a 4x4. I feel like a 600 is fairly easy to air cool and a 1k gets to hot in the summer without running the ac non stop. I'm thinking the heat off the 2 x 400's would be right on that sweet spot for me and the lights only having to cover a 2x2 with over lap on both sides imo it should out perform a single 600 as long you never get them higher than 12-18 in above the canopy and run a scrog style.
     
  3.  
    Cletus clem

    Cletus clem Well-Known Member

    With cmh, the IR light is not as significant making it much easier to cool. As far as penetration, any light that can fry trichomes and stress your plants out without burning them if you run it too close has plenty of penetration. In a 4x4 tent, i would take 630 watts of cmh over 1000 watts of hps all day. E0F5C6B6-ECF4-4E29-B887-182D1C52685B.jpeg
     
    CanadianDank likes this.
  4.  
    Michiganjesse

    Michiganjesse Well-Known Member

    Yup
     
  5.  
    SchmoeJoe

    SchmoeJoe Well-Known Member

    It's a proven fact that there's a direct relationship between UV exposure and potency. Some hps have a little UV but they can't touch halides or led.
     
  6.  
    Yodaweed

    Yodaweed Well-Known Member

    leds dont have UV....:dunce::dunce::dunce::dunce::dunce:
     
  7.  
    SchmoeJoe

    SchmoeJoe Well-Known Member


    There are a few mh and cmh bulbs that are solid with an almost flat spectrum from UV all the way to IR. That's where I'll start when I make my first full spectrum garden.

    The uv increases oil, cannabinoid, and terpene production. IR gives the benefit of the Emerson effect. Blue light light stimulates chlorophyll A which is most associated with root and leaf development and helps keep internodes short while red light stimulates chlorophyll B which is for stem and flower production. Every one of these different bandwidths from a full spectrum light can have real benefits during flowering.
     
  8.  
    SchmoeJoe

    SchmoeJoe Well-Known Member

    Each individual diode produces its own single specific frequency of light. You can get diodes that produce UV and there are quite a few commercial led grow light manufacturers that include UV diodes in their fixtures. I'd just suggest that you look into it since you obviously don't know what you're talking about.
     
  9.  
    growin-Jables

    growin-Jables Well-Known Member

    They actually have some side by side grows where a guy runs 3 - 315 cmh hoods. ( 945w.) Vs 1000w.hps on a mover. Guy ended up yielding roughly the same if not, a bit more then the hps side. Thc analysis came back higher on cmh side. One of the only downsides was a higher leaf to bud ratio. The idea is there is so much unusable light in a pure hps spectrum. With the CMH spectrums, the plant is actually able to photosynthesize more of the light being emitted to it with a much better match to the sun's spectrum. Which is probably people see an increase in terps and bud color. I have a couple harvests under my belt and decided to grab a Nanolux 630cmh. After 2 weeks , buds are turning vibrant colors for the first time ever. My death star og is becoming covered in purple calyxes ( no , not from nitrogen tox) and my blueberry kush is beginning to show blue hints. I'm going to be starting a grow journal here soon of trying to scrog 4 different strains in my 4x4 again . Blue Dream. Purple Urkle x GSC. Purple Diesel. And a Gorilla Glue #4 cut that I took during flowering . It took a while to start tooting. But my oh my she is growing sooo fast now after her first transplant 20171109_235513.jpg 20171109_235431.jpg 20171114_160037.jpg
     
    MarWan and SchmoeJoe like this.
  10.  
    since1991

    since1991 Well-Known Member

    Fuk it. So damn many varying reports on cmh...315's or 630's. Ive researched till my head is ready to explode. Was gonna roll with 630 de cmh from G. choice. But now I hear they aint all that or they are having problems with manufacturing. Wth? Plan was to run 8 cmh. 630 watt. De or the regular double bulb and stagger em in betwixt my Gavita 6/750's. I think iam holding back. Might grab a couple 315 lec's from SS and slap them up in my veg tents. And take it slow. 3 to 5k in another 8 lamps is some money to me. And I just did that a few years ago on the 8 Gavitas. And that room is frikin DIALED. One of the best rooms ive ever built. And ive built a few. Not counting a mini split and commercial grade dehuey. Fuk this is alot of money anymore.
     
    SchmoeJoe likes this.
  11.  
    Yodaweed

    Yodaweed Well-Known Member

    Name one good LED that uses UV LED diodes. I'd suggest you look into it cause you are clueless kid. :dunce::dunce::dunce::dunce::dunce:

    Here's a chart of a popular brand of LEDs, tell me where the UV light is

    https://cdn.shopify.com/s/files/1/1...-8e1f-5bc9834e5378_1024x1024.png?v=1492988517
     
  12.  
    SchmoeJoe

    SchmoeJoe Well-Known Member

    Blackdog
    Blackstar
    Cirrus LED Systems
    Kind LED
    Fluence

    Those are just the ones on the Growers Choice online store. Zen Lion is another.
     
  13.  
    Yodaweed

    Yodaweed Well-Known Member

    Those are pretty much some of the worst LEDs on the market besides fluence and fluence fixtures contain no UV light, pretty sure the rest of them may claim they do but do not have UV either. You might want to do some research about LEDs and not run your mouth to someone that has run LED's for over 5 years.

    https://fluence.science/technology/spydr/
    download the spec sheet check spectrum zero UV do some research before spouting off.
     
  14.  
    SchmoeJoe

    SchmoeJoe Well-Known Member

    Fluence has a UV specific supplemental fixture. Regardless of the brand's quality there are UV led's, they are used in agriculture, and if you have no UV in your gardens spectrum you're missing out on an important biological function that influences quality and yield.

    To sum it up for you, there are UV led's.
     
  15.  
    Yodaweed

    Yodaweed Well-Known Member

    UV LEDs are garbage, if you got an LED that has them in it your LED is garbage. You might want to do some research into how inefficient those are and how you are using technology from 2008 and not updated top bin LEDs. You obviously are new to growing, you might wanna take some hints from more experienced people instead of spouting idiotic comments that make you look uneducated.
     
  16.  
    SchmoeJoe

    SchmoeJoe Well-Known Member

    I've been growing for twenty years. I've never used led but that's irrelevant since I haven't said anything about their effectiveness but only that the UV led's do in fact exist.
     
    Last edited: Nov 15, 2017 at 1:49 PM
  17.  
    Yodaweed

    Yodaweed Well-Known Member

    The vast majority of LEDs used for growing plants do not contain ANY UV light , including all COB fixtures. If your fixture has UV light you bought a garbage fixture that uses ancient technology. You might wanna read up about how to supplement LED spectrum with T5 , that's what skilled LED users do, and if you never used LEDs why are you speaking about them it's obvious they are beyond your grasp. Just even linking blackdog and kind led shows your understanding for current LEDs, if you think blurple LEDs are even remotely good you are beyond clueless.
     
  18.  
    since1991

    since1991 Well-Known Member

    Hey Yoda..from an obviously experienced LED grower..do you find the only ones worth the trouble are COBS ? Whether bought or home buit kits?
     
  19.  
    Yodaweed

    Yodaweed Well-Known Member

    COB's are good but white monos are good too, look into samsung chips for high efficiency they seem to be the best on the market currently.
     
    since1991 likes this.
  20.  
    SchmoeJoe

    SchmoeJoe Well-Known Member

    Again, I never said anything at all about how good they are. All I said was that there are UV led's. Is that really too hard for you to comprehend? Just in case you didn't get it that was both a rhetorical question and sarcasm. I'm done with this conversation.
     

Share This Page