2018 light efficiency ultimate battle

In your opinion what is the most efficient light source when comparing gram per watt of dried weight

  • HPS (specify which one on the thread)

  • LED (specify which one on the thread, diy, etc)

  • CMH / LEC (specify which one on the thread)

  • Metal Halide (specify which one on the thread)

  • CFL


Results are only viewable after voting.

pulpoinspace

Well-Known Member
Why would you test lumens per watt.. lumens don't necessarily dictate the amount of weed you're getting at the end of the day and really that's what's matters . I've seen leds that put out badass reads on a par meter and people still suck with them. The proof has always been in the pudding . You don't see the jungle boys using no leds. Some plants don't want more light. I've hit my best weight under single ended thousand watt fixtures. All my flowering rooms are now DE. If I can't get back on the weight I was hitting with single ended soon,, should I keep them in because they have a better lumen output? No sir. I'm going to use what gets the most weed for the investment
i personally would not test lumens per watt, especially cause lumens don't matter for plants. i was just answering the question about how a lights source's efficiency is typically measured.

i agree every one should do what works best for them. iif it aint broke don't fix it.
 

Funshine

New Member
My only downside for LED is i would have loved to have known how hot they make the room on a whole. SO i could have built the fixtures so they would have fit inside of air cooled hoods.
 

max420thc

Well-Known Member
in my opinion, gram per watt depends on additional factors. cost to grow and efficiency of lights is two different measures. one is measuring your whole operation and one is a simple fact about a light source. imo better way to measure light efficiency is ppfd or simpler ways like lumens per watt.



I really wish he had tested those too. especially the veros as they are what i use. seems no one doubts the qbs most good cobs might perform similarly. hopefully he tests more.
OMG , lumens per watt, how do you compare distance traveled to lumens perduced by a single watt?
You LED guys kill me, you are so nerdy you are dumb
If I give you a foot ball and you throw it at 10 ft per second, ( ft per second equals watts) and you throw it ten times at 10 ft per second it still only ends up 2 ft from you feet, all ten foot balls,
If I take one foot ball and throw it at 1000 ft per second guess whos football has more penatration and depth of coverage?
Guess who's foot ball produces more yards per throw?
It's a no brainier for most of is who are not complete nerds,
It's like me having a 10 once dick and you and nine of your buddies all having one inch dicks trying to tell me you satisfy a woman as good as I can because you all bang her and there for she gets ten inches of dick more efficiently ,
How retarded, you all can take all your LEDs and keep hobby growing with those idiot things all you want, until you get a 1000 watt single bulb LED they are a joke ,
 

pulpoinspace

Well-Known Member
OMG , lumens per watt, how do you compare distance traveled to lumens perduced by a single watt?
You LED guys kill me, you are so nerdy you are dumb
If I give you a foot ball and you throw it at 10 ft per second, ( ft per second equals watts) and you throw it ten times at 10 ft per second it still only ends up 2 ft from you feet, all ten foot balls,
If I take one foot ball and throw it at 1000 ft per second guess whos football has more penatration and depth of coverage?
Guess who's foot ball produces more yards per throw?
It's a no brainier for most of is who are not complete nerds,
It's like me having a 10 once dick and you and nine of your buddies all having one inch dicks trying to tell me you satisfy a woman as good as I can because you all bang her and there for she gets ten inches of dick more efficiently ,
How retarded, you all can take all your LEDs and keep hobby growing with those idiot things all you want, until you get a 1000 watt single bulb LED they are a joke ,
you obviously didn't read my 2nd post in this thread.
its at the top of this page. here ill quote it just to make it easy:

i personally would not test lumens per watt, especially cause lumens don't matter for plants. i was just answering the question about how a lights source's efficiency is typically measured.

i agree every one should do what works best for them. iif it aint broke don't fix it.
i'm not arguing with you. its a joke to me that people even argue about this. if you grow weed and it works for you than you're good. who the hell cares what kind of light you grow it with! BUT, i thoroughly enjoyed your analogy about the pensises, especially the phrase "she gets 10 inches of dick more efficiently." i laughed out loud at that and i'm gonna steal that and use it in every day life.
 
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dbrn32

Active Member
ft per second equals watts
Ha, my sixth grade science teacher told me watts= E*I. Same guy told me feet per second is a measure of speed and/or velocity. Outside of that kind energy being converted it has nothing to with electrical energy or light. A watt is nothing more than a unit of energy consumption, and makes no consideration to the amount of work being done with that energy.

Maybe one of those dumbass nerds could build you a wind turbine and you’d be in good shape.
 

max420thc

Well-Known Member
Ha, my sixth grade science teacher told me watts= E*I. Same guy told me feet per second is a measure of speed and/or velocity. Outside of that kind energy being converted it has nothing to with electrical energy or light. A watt is nothing more than a unit of energy consumption, and makes no consideration to the amount of work being done with that energy.

Maybe one of those dumbass nerds could build you a wind turbine and you’d be in good shape.
The anaolagy was concerning a foot ball and how hard it is thrown and the distance it goes, watts , the use of energy , if you were not such a egg head you would have understood the analogy ,but, no thanks , I don't need your help
2 pics 045.JPG
 

rob333

Well-Known Member
First post in the forum. I’ve been growing for about 16 years mainly outdoor.

Started indoor a couple years ago using 1000w’s HPS’s with magnetic ballasts. Later on I switched to 400w Phillips HPS with Lumatek electronic ballasts for efficiency.

I’m seeing a lot of discussion and contradictory information on the efficiency of LEDs vs HPS vs CMH and I’m trying to clear the waters. If I’m making the full switch and investing a couple thousand I might be sure of what’s working better. I’ve seen side by side grows on forums and either some are poorly done without any kind of scientific method approach or they are biased. The cannabis industry is looking more and more like the fitness supplement industry with a lot of big brands marketing things with incorrect data.

In your opinion what is the most efficient light source when comparing gram per watt of dried weight? (Power consumption vs grams of dried weight)

Other factors and advantages such as heat emission, potency, cost of the equipment, etc are not to be compared. If some lights have better spectrum, etc is also not important. We will focus on gram per watt exclusively on this discussion and keep it focused around this subject.

Let me know about your personal opinion, links to properly done side by sides, etc…
hps every time what u lose in paying power u will make up in buds peace
 

rob333

Well-Known Member
Ha, my sixth grade science teacher told me watts= E*I. Same guy told me feet per second is a measure of speed and/or velocity. Outside of that kind energy being converted it has nothing to with electrical energy or light. A watt is nothing more than a unit of energy consumption, and makes no consideration to the amount of work being done with that energy.

Maybe one of those dumbass nerds could build you a wind turbine and you’d be in good shape.
this guy jacks off over led pics in hi times dont ya
 

rob333

Well-Known Member
The anaolagy was concerning a foot ball and how hard it is thrown and the distance it goes, watts , the use of energy , if you were not such a egg head you would have understood the analogy ,but, no thanks , I don't need your help
View attachment 4204870
you will always get hps haters trying to claim there leds are better and we all no they are full of shit love the grow mate good to see we have some true hps growers here
 

rob333

Well-Known Member
you will always get hps haters trying to claim there leds are better and we all no they are full of shit love the grow mate good to see we have some true hps growers here
back in 08 when i first got to rollitup everyone hated leds lolol
 

Cappuchino

Well-Known Member
A couple observations.... He didn't test the more efficient of the Quantum Boards, LED strip lights, or good COB lights like Timber, with Citizen, Luminus, or Vero COBs. It's also interesting to note the he lists the SPYDRx at 2.17μmoles/j , while Fluence says 2.5.
Here you can see some of it.
 

dbrn32

Active Member
The anaolagy was concerning a foot ball and how hard it is thrown and the distance it goes, watts , the use of energy , if you were not such a egg head you would have understood the analogy ,but, no thanks , I don't need your help
View attachment 4204870
I was just pointing out that your analogy was shit. It doesn’t matter how hard a ball is thrown or how far it goes as both are units of work, not energy.

I have hid lights and led lights, and made no comment on either. I was simply pointing out that you may want to pull your head out of your ass and go bury it back in the sand where it belongs. If you don’t have even a basic understanding of the difference between energy and work you certainly shouldn’t be commenting on a thread with the word efficiency in the title.
 

max420thc

Well-Known Member
I was just pointing out that your analogy was shit. It doesn’t matter how hard a ball is thrown or how far it goes as both are units of work, not energy.

I have hid lights and led lights, and made no comment on either. I was simply pointing out that you may want to pull your head out of your ass and go bury it back in the sand where it belongs. If you don’t have even a basic understanding of the difference between energy and work you certainly shouldn’t be commenting on a thread with the word efficiency in the title.
Yea dummy, more energy more work, the more concentrated the energy the more work it can do ,
I doubt very seriously anyone on here with a LED will never compete with production to MH or HPS , lamps, the light does not have enough power behind it to push it deep into the plants,
If you can't do this maybe you should not comment on a growers web site at all?
 

Attachments

dbrn32

Active Member
Yea dummy, more energy more work, the more concentrated the energy the more work it can do ,
You’re still clueless lmao! More efficient would mean more work on the same amount of energy. Or the same amount of work on less energy. Not more energy = more work. Jfc, how dense are you?!

Not sure why I went though the effort, but I copied this from dictionary.com for you.


  1. the ratio of the work done or energydeveloped by a machine, engine, etc.,to the energy supplied to it, usuallyexpressed as a percentage.



I doubt very seriously anyone on here with a LED will never compete with production to MH or HPS , lamps, the light does not have enough power behind it to push it deep into the plants,
If you can't do this maybe you should not comment on a growers web site at all?
I never made one comparison of hid lighting to led lighting, yet this is 2nd time you’ve shard your opinion quoted to me. I don’t give a fuck what you grow with, or what you think is better. I just wanted to point out to op what kind of a moron you are. Turns out, you’ve done a good enough job on your own.
 

N.R.G.

Well-Known Member
Efficiency ???? Dude are hitting 3.5 pounds + from a thousand watt hps fixture from a 5x5 footprint and the fixture cost less than 400 bucks . How does it get more efficient than that? 1.3-1.5 gpw average for me with 1000watt hps. Leds are a waste of money and time. People say ohh well you ac don't have to work as hard. Lemme enlighten people on this. If you have a full canopy.. and your Acs aren't working wide open, then you're not pulling enough water out of the air and the dehumidifiers turn on. Giving up power on one end have to use it on the other.. for what? To save a few hundred bucks a month on power? All that matters is what fixture hits the most weight. If you have a 12 lighter, and use decide to go LED, now the room you used to pull 33+ packs out of now just hit ... 27 let's say for random number knowing it would probably be Less. Those 6 packs.. were basically your run cost lols. Someone who grows with leds explain to me how that's cost effective .
With all that being said if you grow in a closet or a tiny area for a hobby then the situation might be different for you. But people trying to turn an burn batches, dont waste your time switching from hps .
That's what I've always said. In a small grow you might get a COB or LED to do better in grams per watt but the problem is the lack of over all production. Nothing produces like HIDs. You run 1k's, I am personally fond of 600's. I feel I can get a little deeper penetration with the 600's without burning and I just run 2 600's for each 1000 I replaced. Both are awesome producers though.
 
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