Why all the arguments over LED vs HPS ?

[Jcb890]

4x4 is a good area to grow in, you can start with pretty much any type of light , might wanna try to start cheap to figure out how you wanna grow your plants, each person does different methods, i'm an organic guy now but i started as a soil drain to waste guy, tried coco, tried RDWC hydro , for me growing is about experimenting with new things to find out what fits your best and enjoying the process. I just started breeding my plants together, and that's something new and fun for me. I hope you can enjoy it, happy toking

Thanks man! I was thinking LED to help save on electrical costs and to not have to run any AC to save on those electricity costs as well.

I'm planning to go soil in air pots... I have been reading good things about air pots. There's all sorts of cheap options to go with on Craigslist, etc., but I'd rather not invest money in something that is a waste. I'd rather invest once and do it right if that's possible.

My wife and I are actually taking a break from smoking currently due to some personal things we have going on, but are probably going to pick it back up in a month or so. It makes it even more painful to be looking at all of these plants and buds and doing all of this research and not smoking, lol!

 

[Yodaweed]

Thanks man! I was thinking LED to help save on electrical costs and to not have to run any AC to save on those electricity costs as well.

I'm planning to go soil in air pots... I have been reading good things about air pots. There's all sorts of cheap options to go with on Craigslist, etc., but I'd rather not invest money in something that is a waste. I'd rather invest once and do it right if that's possible.

My wife and I are actually taking a break from smoking currently due to some personal things we have going on, but are probably going to pick it back up in a month or so. It makes it even more painful to be looking at all of these plants and buds and doing all of this research and not smoking, lol!

http://timbergrowlights.com/600-watt-vero29-v7-4x4-framework/

that will light up a 4x4 like christmas if you can afford it, all the DIY is done for you as well for a small fee, top 5 best LED diodes on the market and probably the best for the money.

 

[Jcb890]

http://timbergrowlights.com/600-watt-vero29-v7-4x4-framework/

that will light up a 4x4 like christmas if you can afford it, all the DIY is done for you as well for a small fee, top 5 best LED diodes on the market and probably the best for the money.

Yeah, I found Timber and looked at all of their kits. Not too bad as far as pricing goes, but if I'm going to have to assemble it anyways, I may just piece it together myself which would be cheaper.

I also found cobkits and have been looking at their pre-built light engine setups with the Luminus CXM22's.

I also found a local guy who is willing to build me a COB LED rig with 12x Citizen 1212's.

One thing I think I have figured out from doing all the reading and research is that the Cree CXB3590's aren't worth their premium price. I have seen some people suggest 12 LEDs, some suggest 10, some suggest 9... I'm having a tough time deciding as you can see

 

[Yodaweed]

Yeah, I found Timber and looked at all of their kits. Not too bad as far as pricing goes, but if I'm going to have to assemble it anyways, I may just piece it together myself which would be cheaper.

I also found cobkits and have been looking at their pre-built light engine setups with the Luminus CXM22's.

I also found a local guy who is willing to build me a COB LED rig with 12x Citizen 1212's.

One thing I think I have figured out from doing all the reading and research is that the Cree CXB3590's aren't worth their premium price. I have seen some people suggest 12 LEDs, some suggest 10, some suggest 9... I'm having a tough time deciding as you can see

Yea i wouldn't go with cree , they have fallen a bit behind currently but i'm sure they will rebound, the citizens are good LEDs for a budget type build and the luminus CXMs are as well. The framework kits are preassembled all you gotta do is hang it up and plug it in

 

[MichiganMedGrower]

Some people need bigger lights than what you are using, if you are happy with what you got more power to you, i live in a high plains desert, and i have no problem with handling the heat from over 2kw of HID lights, i also pay .11 cents per kwh during peak hours and .07 cents per kwh during off peak hours ( i run my lights during off peak hours , so i wouldn't ever see much return on investment on my LEDs)

Also i don't see many dispensaries using LEDs and i don't think i will for a long time, DE lights work way better than LEDs in a warehouse type grow.

Finally CMH VS HPS , CMH works GREAT, but it's best for a supplemental lights between HPS lights, not the greatest as a main lighting source because in my opinion(i just finished a CMH/HPS grow using a phillips CDM bulb) the HPS makes bigger buds because the CMH lacks intensity (i think it only makes like 35k lumens and a 600w hps makes 90k)

I agree with all of this. Using the right tool for the job and the grower is what we should do. I don't really understand why there is an argument. Except for investment. Someone buys a cmh and then doesn't want to admit it produced less than the hps they replaced so they fight I guess.

My findings are like yours. I have retired my 315 for 3x3 veg tent use until I can build a space for it to go between the 2 600's. That is a killer flower array for me. In a 4x8 footprint.

I put the 600 blue metal halide back in for quality spectrum.

LED's are advancing fast in the horticulture industries but it is multi color chip strip lighting being advanced that I see in food production. Not the cobs I see on the forums. And it is expensive.

 

[Psyphish]

Was your setup comparable between CMH, HPS and LED?

Which provided better yields?
How much electricity savings did you see with LED compared to HPS?
How much of a difference in heat did you see?
Which lighting provided better buds from a THC, taste and smell standpoint?

If you were to start over from new, would you go CMH, HPS or LED? And why?

All the usual questions I suppose.

CMH grows the best weed IME. No competition... IME.

 

[Heil Tweetler]

I agree with all of this. Using the right tool for the job and the grower is what we should do. I don't really understand why there is an argument. Except for investment. Someone buys a cmh and then doesn't want to admit it produced less than the hps they replaced so they fight I guess.

My findings are like yours. I have retired my 315 for 3x3 veg tent use until I can build a space for it to go between the 2 600's. That is a killer flower array for me. In a 4x8 footprint.

I put the 600 blue metal halide back in for quality spectrum.

LED's are advancing fast in the horticulture industries but it is multi color chip strip lighting being advanced that I see in food production. Not the cobs I see on the forums. And it is expensive.

I agree. Solid state lighting tech continues to rapidly advance AND there is a lighting solution to satisfy every garden.

Strips, cobs and monos are all LEDs. LED performance and efficiency improvements easily out pace HPS, CFL and other common grow light engines. Cobs are an iteration of the changing LED tech. Best tech cobs, obsolete as they may soon be, are nonetheless more efficient light engines than other tech in theory and in practice.

I dont believe that any particular light source has the monopoly on dank. LED grows flowers equal in excellence to HPS, sun grown, CMH etc.

 

[Odin*]

All the blurple statements, shady comparisons and ongoing arguments.
Is it over money ? Why is HPS being shoved down people's throats who show interest in LED/COB ? What's so wrong with LED????? I see absolutely nothing.

Fragile egos...

/End Thread

 

[Lola Grows]

http://timbergrowlights.com/600-watt-vero29-v7-4x4-framework/

that will light up a 4x4 like christmas if you can afford it, all the DIY is done for you as well for a small fee, top 5 best LED diodes on the market and probably the best for the money.

Around 1000$ , it looks to be worth it.

 

[Lola Grows]

Fragile egos...

/End Thread

They're coming out of nowhere.... baffling

The thread will end when it's ready lol.

 

[jwreck]

I use LEDs, i'm not a hps die hard, you just gotta realize the LED market is for small hobby sized grows, they don't work as well as a HPS for larger sized rooms for a multitude of reasons. I highly doubt we will see HPS go away unless LED initial cost goes down substantially and they start offering LEDs that have a better spectrum, i know i am not gonna use my LEDs without using a UV supplemental light, and for larger rooms that's not really gonna work.

what does supplemental uv lighting provide? been using cobs for the past 18 months and i wanna know what deficiencies to look for or what im missing from the lack of uv supplementation, so far my buds are denser, frostier and healthier looking than when i grew with HPS

not trolling either just a honest question

 

[Yodaweed]

I agree with all of this. Using the right tool for the job and the grower is what we should do. I don't really understand why there is an argument. Except for investment. Someone buys a cmh and then doesn't want to admit it produced less than the hps they replaced so they fight I guess.

My findings are like yours. I have retired my 315 for 3x3 veg tent use until I can build a space for it to go between the 2 600's. That is a killer flower array for me. In a 4x8 footprint.

I put the 600 blue metal halide back in for quality spectrum.

LED's are advancing fast in the horticulture industries but it is multi color chip strip lighting being advanced that I see in food production. Not the cobs I see on the forums. And it is expensive.

I'm all about results and i'm not gonna bs myself because i made a mistake or bought something that didn't produce the results i expected. I consider that money a well spent education in growing equipment. and i still plan to use the equipment for vegging and more experimentation.

 

[Yodaweed]

what does supplemental uv lighting provide? been using cobs for the past 18 months and i wanna know what deficiencies to look for or what im missing from the lack of uv supplementation, so far my buds are denser, frostier and healthier looking than when i grew with HPS

not trolling either just a honest question

Up to 30% increased cannabinoids and flavonoids, here read these studies

http://hightimes.com/grow/grow-hack-does-uv-light-increase-cannabis-potency/

https://californialightworks.com/uvb-light-and-thc-potency/

http://hightimes.com/grow/grow-hack-how-to-use-a-uv-lamp-to-increase-thc/

My LED setup uses an 18% UV-B bulb

One of the best UV-B setups is a T5 with a UV bulb in it, 15 minutes per hour , starting at mid day is how i run mine, too much UV light will fry your trics and plant, so you gotta know how to use this to do it properly, and best time to start is when you flip your plants from veg to flower or about 1 week after.

HEALTH WARNING

UV light is known to cause skin cancer and can make you go blind, wear proper protection when working with UV light.

 

[MichiganMedGrower]

CMH grows the best weed IME. No competition... IME.

As a stand alone bulb maybe. But there are many setups that can work great.

I get better results mixing my 315 with hps. And equal results with a metal halide and an hps.

if I used led I would add uv tubes to the room.

 

[MichiganMedGrower]

Up to 30% increased cannabinoids and flavonoids, here read these studies

http://hightimes.com/grow/grow-hack-does-uv-light-increase-cannabis-potency/

https://californialightworks.com/uvb-light-and-thc-potency/

http://hightimes.com/grow/grow-hack-how-to-use-a-uv-lamp-to-increase-thc/

My LED setup uses an 18% UV-B bulb

One of the best UV-B setups is a T5 with a UV bulb in it, 15 minutes per hour , starting at mid day is how i run mine, too much UV light will fry your trics and plant, so you gotta know how to use this to do it properly, and best time to start is when you flip your plants from veg to flower or about 1 week after.

HEALTH WARNING

UV light is known to cause skin cancer and can make you go blind, wear proper protection when working with UV light.

I wish I had saved or could find the link but when I was researching uv I found that commercial growers have tested using uv all the way through and just the last two weeks in flower and got equal lab tests.

And the reality from pretty extensive research is about 4% increase in thc. From 18% to 22% for instance I have seen posted.

I agree that the other canabanoids are increasing with it.

 

[Yodaweed]

I wish I had saved or could find the link but when I was researching uv I found that commercial growers have tested using uv all the way through and just the last two weeks in flower and got equal lab tests.

And the reality from pretty extensive research is about 4% increase in thc. From 18% to 22% for instance I have seen posted.

I agree that the other canabanoids are increasing with it.

4% of 18% is 22%

 

[MichiganMedGrower]

4% of 18% is 22%

I know. But it isn't 30% and saying it that way sounds like an exaggeration. The reality is it is a little more potent than without. Not a huge difference but subtle.

Things tend to be overstated here.

 

[Yodaweed]

I know. But it isn't 30% and saying it that way sounds like an exaggeration. The reality is it is a little more potent than without. Not a huge difference but subtle.

Things tend to be overstated here.

Just going off what those published articles said, i don't expect 30% , i expect 15-20% if i do it well, it's mostly about the flavor for me, i like the full flavor it gives the buds.

 

[MichiganMedGrower]

Just going off what those published articles said, i don't expect 30% , i expect 15-20% if i do it well, it's mostly about the flavor for me, i like the full flavor it gives the buds.

I don't know this for sure and will have to research. But full spectrum and less heat promote terpenes with good plant health. Uv promotes canabanoids with stress to the plant.

In testing I keep seeing led gives the best flavor. Cmh the highest potency and hps the biggest densest flowers.

 

[Yodaweed]

I don't know this for sure and will have to research. But full spectrum and less heat promote terpenes with good plant health. Uv promotes canabanoids with stress to the plant.

In testing I keep seeing led gives the best flavor. Cmh the highest potency and hps the biggest densest flowers.

Yea that's why i do so much experimenting with my lighting to try to bring out the maximum terpene profile from my plants. Wish there was some more research out there but for now it seems to be just an experiment and figure it out type situation.