DIY cheap(est) Chinese LED growlights

Tryguy

Member
For the budgetary reasons it might become handy to talk about real cheap growlights. Everywhere you look at the internet the only brands talked about are Cree, Citizen and Vero. The best? Yes! Cheap? no...

I fully understand that better efficiency results in lower power bills and better growth. But for self-use of your ladies a cheap light for as little as 3 USD can give good results. Maybe not the best, but hey, for a few bucks growing can become in reach for that smaller wallet.

All links are examples and I do not endorse the sellers, it is always best to take the name of the lamp/part and double check into Ebay to find out if you can get it any cheaper or even better, but this way I can guide you into how it looks. If it is against the forum rules please tell me admins.

At first I would like to show you that some guy at a Dutch forum tested real cheap LEDs for the vegetative state of 6 plants. Be amazed of the outcome. I ran it through Google translate to show it in English. You can read all about it: Here

The conclusion is that a 3 USD LED is the winner. For the beginning diyselfers this is an easy lamp with a srewbulb, minimum technical capabilities required. So I went on the big big internet and found these biggies. They need a cooler and an external adapter. So for a few dollars more you can get the adapter anywhere. 36 volts @ 50 watts in my case.
There are also more sellers who sell sets at ebay. For a colour temperature of 3000-3500K you would be allright when you prefer to go for a white light. (or mix them with blue/red lights)

However take note that these lights are in fact Factory rejects, they can be handy for growing. Some miss a single line out of ten lines of light or they do not light up evenly. When the lamp is horrific bad you can send them back under warranty or you lost a few bucks. Mine were 90% allright. One out of ten is missing just one line, but I don't care. They all light up unevenly but when you look at the spec sheet of the more expensive stablehorse from Citizen they claim that that is normal.

So it is best not to put them in parallel but let them run on a single adapter to avoid resistance differences and burn a few out.
But on a real low budget it is a cheap way of growing your ladies in winter time!

This subject is not intended to be a better way of growing but a different way as an approach to the more expensive parts that are being sold. The choice is yours, if you want high yield and the lowest possible power bill you better go for the A++ models from Cree/Citizen/Vero.

One last warning about working with High Power leds. They act as lasers because of the bundled characteristics of the leds so always wear protective eyewear when working with cobs.

Cheers!
 
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Olive Drab Green

Well-Known Member
For the budgetary reasons it might become handy to talk about real cheap growlights. Everywhere you look at the internet the only brands talked about are Cree, Citizen and Vero. The best? Yes! Cheap? no...

I fully understand that better efficiency results in lower power bills and better growth. But for self-use of your ladies a cheap light for as little as 3 USD (or 10) can give good results. Maybe not the best, but hey, for a few bucks growing can become in reach for that smaller wallet.

All links are examples and I do not endorse the sellers, it is always best to take the name of the lamp/part and double check into Ebay to find out if you can get it any cheaper or even better, but this way I can guide you into how it looks. If it is against the forum rules please tell me admins.

At first I would like to show you that some guy at a Dutch forum tested real cheap LEDs for the vegetative state of 6 plants. Be amazed of the outcome. I ran it through Google translate to show it in English. You can read all about it: Here

The conclusion is that a 3 USD LED is the winner. For the beginning diyselfers this is an easy lamp with a srewbulb, minimum technical capabilities required. So I went on the big big internet and found these biggies. They need a cooler and an external adapter. So for a few dollars more you can get the adapter anywhere. 36 volts @ 50 watts in my case.
There are also more sellers who sell sets at ebay. For a colour temperature of 3000-3500K you would be allright when you prefer to go for a white light. (or mix them with blue/red lights)

However take note that these lights are in fact Factory rejects, they can be handy for growing. Some miss a single line out of ten lines of light or they do not light up evenly. When the lamp is horrific bad you can send them back under warranty or you lost a few bucks. Mine wer 95% allright. One out of ten wat missing just one line. They all light up unevenly but when you look at the spec sheet of the more expensive stablehorse from Citizen they claim that that is normal.

So it is best not to put them in parallel but let them run on a single adapter to avoid resistance differences and burn a few out.
But on a real low budget it is a cheap way of growing your ladies in winter time!

This subject is not intended to be a better way of growing but a different way as an approach to the more expensive parts that are being sold. The choice is yours, if you want high yield and the lowest possible power bill you better go for the A++ models from Cree/Citizen/Vero.

One last warning about working with High Power leds. They act as lasers because of the bundled characteristics of the leds so always wear protective eyewear when working with cobs.

Cheers!
I can totally respect your want for a "different way of growing, but you have to understand: You only get out of this what you put into it. If one wants to use $3 factory rejects because they want to keep it cheap, I truly don't think they should even bother growing. You more than likely will not yield anything significant for your months' worth of work.

If you grow with a $3 factory reject, you're going to get the result of a factory reject. Your idea that these will yield anything at all is a sad fantasy. You have to realize: You are not the first person to try to do shit the cheap way. It doesn't work. These lights, in particular, will not work at all. I guarantee you won't even get a quarter, not even an eighth from these horrible house lamp screw-in LEDs. Other people have tried these exact ones. Your expectations truly are unrealistic, and the sooner you realize that, the sooner you can start actually growing instead of wanting to grow. Because you'll stop wasting your time with bullshit like these and search for something that actually works.
 

Olive Drab Green

Well-Known Member
Even the guy who wrote this has no idea what he's talking about. He refers to these 5w house lamp LEDs as COBs, and they definitely are not. They're cheap, useless, powerless Chinese money hooks for gullible people who don't want to have to spend anything to grow. You have to realize, you're going to have to spend money in this hobby to get anything out of it.

You really need to go look for real lights, bro. This is just sad. It would probably take 6 months of veg to get anything out of this, and even then, it won't be any kind of significant amount. Like, maybe a gram and a half?

I'm not even trying to shit on you, man. But you seriously need to be more realistic. Go get a light that's actually acknowledged as useful at the very least. If this is what you were talking about when we were talking about the LEDs before, I retract my previous statement. Go with the goddamned panel. Don't waste your money on these, $3 or not.
 

Olive Drab Green

Well-Known Member
@Tryguy
"One last warning about working with High Power leds. They act as lasers because of the bundled characteristics of the leds so always wear protective eyewear when working with cobs."

Dude. This is straight up fucking retarded. You do realize that COBs were invented specifically to replace HIDs in industrial highbay/lowbay warehouse applications, right? COBs do not act as lasers, and are not a threat to your eyesight, although I would say don't stare straight into the emitter like a goddamned moron.

This really shows you have absolutely no idea what you're doing. It even makes me wonder how old you are.
 

Tryguy

Member
I am sorry but I have decided to stop communicating with you because you are trolling and flaming me for what I write. When you don't like me or my writings simply please go elsewhere. Period.
 

Olive Drab Green

Well-Known Member
I am sorry but I have decided to stop communicating with you because you are trolling and flaming me for what I write. When you don't like me or my writings simply please go elsewhere. Period.
I'm not flaming nor trolling you. I am trying to help you understand the reality of what you're asserting. You are simply getting defensive. If you think I am trolling you, wait until other, more merciless people see what you are suggesting to grow with.

As I said, not trolling you. You just seriously are being unrealistic. I don't have to go anywhere. I have a legitimate response to your assertion, and I want to see what others say to you,

Like I said, most people around here know not to buy what you're suggesting they should consider buying, because it doesn't work.

If you don't like what I have to say about it, deal with it. Period. I'm actually trying to help you avoid getting trolled, fool.
 

CobKits

Well-Known Member
They all light up unevenly but when you look at the spec sheet of the more expensive stablehorse from Citizen they claim that that is normal.
ive never seen a single die not light up on any of the hundreds of citizens ive fired

theyre $12, run up to 100W, work reliably out of the box, and should last a decade.

hard to get more affordable than that. whats your time worth?

how much value are those cheap chips when you come home from vacation and find out a whole string has been out for 5 days because of a bad chip?
 

Olive Drab Green

Well-Known Member
ive never seen a single die not light up on any of the hundreds of citizens ive fired

theyre $12, run up to 100W, work reliably out of the box, and should last a decade.

hard to get more affordable than that. whats your time worth?

how much value are those cheap chips when you come home from vacation and find out a whole string has been out for 5 days because of a bad chip?
I keep trying to tell him, man. The dude is totally deluded.
 

Olive Drab Green

Well-Known Member
@Tryguy Why, exactly, are you asserting these lights are a viable option? Explain to me what leads you to believe that these will grow so much as a gram. I want to know how you came to the conclusion that these are at all effective. This is not a quip, I truly want to try to understand your reasoning.
 

Tryguy

Member
I am and will be fair bout the lower quality. But when you have a few 12$ cobs, you also want a pair of nice Meanwell transformers, and a better cooler. So this adds up enormously.
The above examples (as told) are for the people who do not have a job nor income and want a greener life too. This can be a nice start for them. Later on they will off course get to Cobkits.

Maybe you can make a real cheap deal here for the people who are interested? winwin
 
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Olive Drab Green

Well-Known Member
I am and will be fair bout the lower quality. But when you have a few 12$ cobs, you also want a pair of nice Meanwell transformers, and a better cooler. So this adds up enormously.
The above examples (as told) are for the people who do not have a job nor income and want a greener life too. This can be a nice start for them.
Firstly, they're drivers, not transformers, and secondly, they don't come in pairs. Thirdly, adding a large heat sink and a proper fan doesn't add up to much at all. It's really mind boggling that you have such an issue with putting the proper investment required by your grow if you want it to yield anything.

Look, no ignorance on my part. Please tell me why you think that this screw-in LED bulb is a viable grow option? Do you have a PPFD reading for it? Maybe a lumen reading at the very least? Like, explain to me why you think this is going to work.
 

Shugglet

Well-Known Member
I am and will be fair bout the lower quality. But when you have a few 12$ cobs, you also want a pair of nice Meanwell transformers, and a better cooler. So this adds up enormously.
The above examples (as told) are for the people who do not have a job nor income and want a greener life too. This can be a nice start for them. Later on they will off course get to Cobkits.

Maybe you can make a real cheap deal here for the people who are interested? winwin
Cheap CFLs would probably be a better bet than anything you are going to throw together. I went the cheap chinese ebay route my first go-round with LED.

Never again, wasted weeks waiting for the pieces to arrive and didnt work properly when all was received.

Switched to reliable products like the reputable COBs listed around here and meanwell drivers and havent had any problems since.

Out of curiosity, what is "real cheap" when considering one does not have a job nor income?
 

Budget Buds

Well-Known Member
Some people think they can make a diamond out of a turd. to the op, It's been tried before around here, more then once and it never turns out well. think about the money you'll piss away on cheapo lights/equipment and think about how it could have gone into a good lights budget. grow with cfl's till you can save the money to make a quality light with quality products, the first harvest will more then pay for it.
 

Tryguy

Member
I am sort of impressed by the ignorance of the test. Which has been really good documented and has an impressive outcome. It is really fantastic!
 

Budget Buds

Well-Known Member
Basing your ideas off of a 10 day "test" is dumb, light #3 may have made a decent looking plant but it would not grow one to maturity with decent buds . grow with real leds or stick to cfl's your only going to be disappointed with the results
 
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