Buds quality LEDs VS HPS

Discussion in 'LED and other Lighting' started by olsqueak, Nov 16, 2017.


    Snaddehat Well-Known Member

    Can't talk for the states, but in Europe the potential energy savings make more than a lot of difference. We tend to pay quite a lot for electricity compared to U.S, and when you can yield the same for fewer watts used, well then that's rather welcome.
    see4 likes this.

    see4 Well-Known Member

    Ease up on the guy, he was making a hypothetical.

    And to be honest, I've seen several grows used with just LED that did almost equally as well as the same conditions in HPS. Using less watts and less money spent on cooling.

    Also, to note, some folks grow for personal use, and in that case, who the fuck cares what they use? As long as they are getting what they want, right?

    And if youre growing big time indoors, you aren't using RIU for advice on what light source to use.

    So basically you are yelling at someone for something that literally has zero impact on you and your life.

    hashtag just sayin
    whitebb2727 likes this.

    whitebb2727 Well-Known Member

    Nah. Its cool. Just couldn't remember what happened. I generally try not to be an ass but it has happened.
    Buba Blend and Chunky Stool like this.

    TacoMac Well-Known Member

    First off, I state fact, not made up hypothetical bullshit.

    Secondly, I didn't "yell" at anybody. I typed plain, simple sentences.

    Fun fact: it's easier to cool an HPS than an LED. You're spouting pure bullshit. You can slap an HPS in a tube and cool it with a single 4 inch fan. You can't put an entire LED fixture in a fucking tube. You spend FAR MORE on fans and circulation cooling LED fixtures than a single HPS bulb.

    And again, learn to fucking read. I STATED IN PURE FACT that either was just as good and would get the job done. You're just once again making shit up to try to troll the populace as usual.

    Snaddehat Well-Known Member

    Well... It's pretty easy to cool a led fixture passively. No need for any fans, and even fewer watts spent.
    mr. childs and see4 like this.

    see4 Well-Known Member

    Your reading comprehension has failed you. Smoke a bowl and chill out, don't want you popping a blood vessel.

    I've grown with both LED and HPS, I spent less on electricity with my LED grow than I did with my HPS grows, and produced roughly the same yield. HPS had maybe an ounce more.

    So no matter your rhetoric or "PURE FACT", what works for me is different than what works for you. sport.

    Edit: And by less on electricity, it was roughly $30 less a month... for 4 months.

    Edit: I did however spend more on the LEDs than I did on the HPS setup.

    Edit: Like I said earlier, to each their own.

    Edit: Your tiny penis is tiny.

    Edit: Here sweetie, I will hold your hand through this one... in reference to, "ease up, he was speaking hypothetically" ...


    Notice the word, "If"... refers to a hypothetical.

    Edit: Your tiny dick is still super tiny.
    Last edited: Dec 15, 2017

    nevergoodenuf Well-Known Member

    I have tested this multiple times, watt for watt quality COB lights run cooler than HPS. I did this again yesterday. One 600 watt HPS in a 5x5 tent with one fan and a 4" exhaust and an outdoor temp of 60*f. After a couple hours it was 83*. Swapped in 2 fixtures running at 475 watts each (950w at wall) and the temps never rose above 78*f.
    mr. childs, jacrispy and see4 like this.

    wietefras Well-Known Member

    I'm not. You forgot that even the best HPS fixture needs a reflector and they cost you a minimum of 17%. So that 2100umol/s 1000W bulb only puts about 1750umol/s on the plants. So that's 1.75 actual umol/s/W. While COBs easily get 2.4. Most reflectors will cost you a lot more light. Especially the cheap ones will quickly lose 20% to 30% of the light.

    Then with HPS you need to hang the light much higher too. Easily 3 or 4 times as high , which means wall losses are 3 or 4 times higher too. Easily another 10% to 20% lost.

    It all adds up to a minimum of 40% extra light for leds per watt and up to 50% if you really want to. Going for that extra step to 50% can make sense if you are limited on the amount of power you can draw.

    You are completely wrong on the costs too. A good HPS will wipe the floor with a cheap one and a DIY led is not that much more expensive anymore.

    Lol we have a tough guy over here. I actually made the switch from most efficient HPS to leds. So I actually know what i'm talking about. You just did the math wrong. Not really something to be so proud of.

    wietefras Well-Known Member

    Putting a HPS bulb in a cooltube is the worst thing you can do with HPS. The pro's don't do it. For a reason.

    whitebb2727 Well-Known Member

    Nah. Its cool. Couldn't remember what went on.
    Tacomac is a straight up retard and slum lord. I put him on ignore a long time ago.

    States opinion as fact.
    jacrispy, OldMedUser and see4 like this.

    see4 Well-Known Member

    Yea, he gets tooled on quite a bit in the Politics section. Not a bright fellow.
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    OldMedUser Well-Known Member

    I'm in a different situation than most indoor growers. I need the heat that my HIDs give off. If I were to spend a lot of money replacing my old magnetics with state of the art COBs I would be having to have a heater running all the time and not just during the dark periods.

    As heaters don't grow bud but the lights do I'll be sticking to HIDs for the foreseeable future.

    OldMedUser Well-Known Member

    Is that really necessary? I thought we were all adults here.
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    nevergoodenuf Well-Known Member

    When I need the heat, I use my dehumidifier and add CO2. I have setup to run sealed or vented, with or without CO2. Another option is a CO2 burner.

    see4 Well-Known Member

    Yea, I'm running into the problem right now. My grow area during the night is around 62F and during the day around 72F. My T5 is not helping much, so I threw a 400w MH in there to get the temps up. Now they are sittin at 81F at night with lights on and around 74F with lights off.

    And I got a humidifier in there to get the temps up, and combat the dry AZ weather.

    MichiganMedGrower Well-Known Member

    I am not in this argument it is getting worse even to read.

    But if you only saved $120 on electricity and got an ounce less you lost more than you saved for the Grow.
    GreenLogician and OldMedUser like this.
    Chunky Stool

    Chunky Stool Well-Known Member

    My next crop is still small so I'm only running one HPS rig @ 400w. Gotta run a heater to keep temps @75.
    They are growing fast so it won't be long before I'll have the entire space lit up & have to vent the heat.
    OldMedUser and see4 like this.

    see4 Well-Known Member

    Not if I reused the LEDs, which I did, to do another grow and saved another $120, and had to purchase $100 in bulbs...

    But I get what you are saying.. it's close.

    Edit: I grow for personal use, so not too concerned about yield. I like the trichs and density I get with LED more than with HPS.

    see4 Well-Known Member

    hps on veg? or are you on flower already?
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    MichiganMedGrower Well-Known Member

    I only meant on the efficiency of that grow.

    But I think the smaller grower efficiency point is made.

    That is the reason I have ditched the 315 cmh to put back a 600hps. The 315 costs me money. Even if I did a lot more per watt (which just isn’t as true as being stated for me) it is too small a bulb for a stand alone area in my room.
    OldMedUser likes this.

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