eBay LED

[Oregonism]

Hey no worries, if you don't like the answer, why are asking the question? lol Not trying to insult you personally in ANY regard.

Maybe you could try something like this:
http://saisa.eu/blogs/Guidance/?p=1065 having a spectrometer reading may prove that the light is bunk, then at least you could get your money back, rather than being lazy and throwing it in the trash.

Still, one plant seems rather iffy on offing a light, rather dicey, especially for someone so "experienced", you would think they would know better, but good luck.

Sucks that it might be a $200 brick. Oh well, there is always a trusted source like Lumigrow or something.

 

[Oregonism]

My first post, not even going to do an intro first, some of you might know me from across the street at Skunk forum.

I have been doing a ton of research on these very same lights (300w) from the very same manufacturer, I even proxy bought a pair for a friend. Here's what I have so far in condensed version. The lights are not whole power 300 watts as someone mentioned earlier in this thread, they run at about 2/3 on the supplied driver, figure they put out about 180-220 watts each- this extends the life of the lamps. The lights are well built, good components. At issue is the total strength, at 200 watts they each will cover about one or two plants that are a 1-2 feet tall and at that they worked well in veg cycle. As for flowering under these lights there will be much left to desire, they seem to be short on what it takes to produce big flowers, also noticed is that due to the low watts light feeding is required so as not to burn the stock. If those photos posted earlier are examined closely it can be seen that the flowers are small and there is already some nute burn evident. The solution for flowering is to use the LED lights along side an HID of the same or larger power.

The bottom line, the LED's are good to very good for veg, but lack for flower power. The upside is the cost, at 150-200$ each for a pair it really isn't a bad way to get your foot in the door and do a little bit of experimentation.

Here are a few photos of the LED's in action with shots of damage from burn.

Firebrand, here is the newish thread [Jan 2013 - current] about building up LED's. Now, the ebay stuff may only be good for veg, but according to the color nm on the surface they look ok. However, LED's are more than capable of holding the task thru the whole cycle.


Building new panels
https://www.icmag.com/ic/showthread.php?t=253160&page=3

 

[relief]

Hey no worries, if you don't like the answer, why are asking the question? lol Not trying to insult you personally in ANY regard.

Maybe you could try something like this:
http://saisa.eu/blogs/Guidance/?p=1065 having a spectrometer reading may prove that the light is bunk, then at least you could get your money back, rather than being lazy and throwing it in the trash.

Still, one plant seems rather iffy on offing a light, rather dicey, especially for someone so "experienced", you would think they would know better, but good luck.

Sucks that it might be a $200 brick. Oh well, there is always a trusted source like Lumigrow or something.

I didnt ask the question, someone else did. I was letting them know I own one of these lights. I actually had high hopes for it, especially since it was doing so wonderfully during veg.

I know theres LEDS out there (for $1000) that will do well the entire cycle. This light is not one of them. Thats the whole point of this thread. Its about this particular light.

Also, I dont need a spectrometer to tell me what 22 years of experience will. This is light is trash.

 

[Firebrand]

Firebrand, here is the newish thread [Jan 2013 - current] about building up LED's. Now, the ebay stuff may only be good for veg, but according to the color nm on the surface they look ok. However, LED's are more than capable of holding the task thru the whole cycle.


Building new panels
https://www.icmag.com/ic/showthread.php?t=253160&page=3

Thank you for the link, and I am sure that there are some LED's that can carry full cycle, in fact I am currently researching, trying to find the correct parameters and products to do just that. The amount or research is overwhelming at times but searching through a mountain of dirt to find the mother lode is part of the prospecting game.

As for the EBay LED's, my analysis tells me good for veg only and a decent supplement for flower.

Here are a few things I am currently studying.

Photosynthetic Pigments & Absorption Spectrum

There are 6 main photosynthetic pigments in higher plants that drive plant growth, flowering, and fruiting. Different pigments in the plant absorb light at various points of the visible light spectrum - both red and blue - for vegetative and flowering growth.

For example, lets take the most common/abundant photosynthetic pigments in a plant, chlorophyll A and B. The absorption spectra for chlorophyll A is both at 400-450nm (violet to blue) and at 650-700nm (near-red to deep red) while chlorophyll B peaks at 450-500nm and 600-650nm. So, while red is essential to flowering, it is also necessary for vegging. It also happens to be absorbed less efficiently by plants, hence the increased need for red lighting during flowering

- See more at: http://www.myhydroponicgardening.co...hts-spectrum-wavelength/#sthash.oDbpfZ8V.dpuf

Add to that, I am looking 1w vs. 3w vs. 5w, also viewing angles must be taken into account, as can be seen it is quite complex.

This is the reason I am here, I am hoping to gain a higher knowledge, it looks like it is already working, thank you for your help and input and hopefully further discussion.

 

[Firebrand]

This is light is trash.

Not necessarily trash, just not good for flowering as a stand alone.

Used for veg it can be effective.

 

[Neekz]

I got a shit ton of pistils at 3 week's with only like 30-40ish watts on a simmilar style panel using shite nirvana f2's so IDK man, probably pheno, you can never tell from seed... My plant's actually just started showing pistils at week 2 lol. I recommend never running it more than 12" from the top's. I mean unless the seller gives your the voltage/current spec's that the l.e.d.'s are running then your kinda in the dark as to how much light it's actually putting out. My guesstimate's run from 105w @ 350mA a diode, to 195w @ 650mA a diode. The fact it is not using optic's (Ie Lens's...) means that the usable light (Light the plant's flowering will respond to.) is only good to about 18" away from the panel, after that the plant may produce small malformed growth in flowering. I have quite the opposite effect of nute burn on my plant's running the GO line, they seem to take as much as you can throw at them. I can tell you one thing, the flowering response time between outdoor's and and indoor's are 2 different world's, let alone the difference's between types of indoor lighting (Comparing Apple's to Orangutan's...). One could also bring up the fact about the difference's in strain phenotype's among different breeder's, from seed over, a period of 6 year's, lol. Data is pretty inconclusive unless starting with an established clone that you know the rope's with. I highly advise people to research before any hefty L.E.D. purchase...

 

[Oregonism]

Thank you for the link, and I am sure that there are some LED's that can carry full cycle, in fact I am currently researching, trying to find the correct parameters and products to do just that. The amount or research is overwhelming at times but searching through a mountain of dirt to find the mother lode is part of the prospecting game.

As for the EBay LED's, my analysis tells me good for veg only and a decent supplement for flower.

Here are a few things I am currently studying.

Photosynthetic Pigments & Absorption Spectrum

- See more at: http://www.myhydroponicgardening.co...hts-spectrum-wavelength/#sthash.oDbpfZ8V.dpuf

Add to that, I am looking 1w vs. 3w vs. 5w, also viewing angles must be taken into account, as can be seen it is quite complex.

This is the reason I am here, I am hoping to gain a higher knowledge, it looks like it is already working, thank you for your help and input and hopefully further discussion.

Actually it would be LED's, driver and then heatsink you should take into account first, then lense's as one of the last things.

You don't have to have lense's [180 degrees], but remember 60 degrees lense is focusing 3x the light [penetration] while only losing 10-12% overall from the lense material itself.

Steep angles for penetration and shallow angles for coverage [Scrog, etc.]

 

[relief]

Not necessarily trash, just not good for flowering as a stand alone.

Used for veg it can be effective.

Too me its really not. In hot weather its worthless. It puts out alot of heat, much more than 200 watts draw of cfls will. It really does put off alot of heat from the exhaust fans cooling the light.

This light here does a better job at vegging, flowering and puts off less heat.

http://1000bulbs.com/product/8376/FC200-35872.html

Been using a 200 watt cfl on sensi star inside for 5 years and always had great results with it and its only 80 bucks.

 

[Oregonism]

I didnt ask the question, someone else did. I was letting them know I own one of these lights. I actually had high hopes for it, especially since it was doing so wonderfully during veg.

I know theres LEDS out there (for $1000) that will do well the entire cycle. This light is not one of them. Thats the whole point of this thread. Its about this particular light.

Also, I dont need a spectrometer to tell me what 22 years of experience will. This is light is trash.

...and I apologize, you are chiming in, because you bought the same light. However, I am also a person interested in your review. [I continually trolling on eBay [at times] looking at the Led setups. You aren't making me NOT want to buy it, just the oppppsite actually.

How can I fully judge the quality of the panel based on your experience from 1 freaking plant? That makes absolutely know sense. I mean I love this entity, I would never try to put so little effort into it I guess, to each there own. Experience would still seem to dictate that you would AT LEAST try multiple cuts, good luck with the new trash can ornament, can I come grab it out after you toss it? I mean shit, I use CFL's from Walmart Im so fucking broke.

 

[relief]

...and I apologize, you are chiming in, because you bought the same light. However, I am also a person interested in your review. [I continually trolling on eBay [at times] looking at the Led setups. You aren't making me NOT want to buy it, just the oppppsite actually.

How can I fully judge the quality of the panel based on your experience from 1 freaking plant? That makes absolutely know sense. I mean I love this entity, I would never try to put so little effort into it I guess, to each there one. Experience would still seem to dictate that you would AT LEAST try multiple cuts, good luck with the new trash can ornament, can I come grab it out after you toss it? I mean shit, I use CFL's from Walmart Im so fucking broke.

You can have it. Im in Texas. Its yours if you can come and get it. Stick with CFLs, you're better off. I get better results with them. Less heat too.

 

[Neekz]

Here's 1 week, bottom right.

Here's 3 week's.

Most growth was from week 2-3 of flower. Here's how my "panel look's.

Half the amount of the same diode's your's has, and run at the lowest current they drive them at, 300mA. So if your's is driven at 300mA like most model's built like these, then your style of growing is probably not well suited to the type of L.E.D. tech purchased. Look at Oneshot, I think the panel's he use's will suit your style's more, and even he said the Blackstar is garbage for growing tree's. Now for us micro guy's, it's just right for growing budsicle's... I really think if you would have waited it out you would have gotten some response. Patience is the first virtue of growing in my book. Long veg does kind of get you antsy though I guess. I say dump em back on fleabay hehe...

 

[Neekz]

Too me its really not. In hot weather its worthless. It puts out alot of heat, much more than 200 watts draw of cfls will. It really does put off alot of heat from the exhaust fans cooling the light.

This light here does a better job at vegging, flowering and puts off less heat.

http://1000bulbs.com/product/8376/FC200-35872.html

Been using a 200 watt cfl on sensi star inside for 5 years and always had great results with it and its only 80 bucks.

What's your average temp's in your area? We rarely get down into the 70's even night's. Without fan's blowing directly on the bulb's, it would be an easy bake oven here, you might as well go HID for the cooling need's. My tent is cooled by 2 pc fan's, none blowing directly on the l.e.d. unit, and the temp's are 1*F over ambient if they ever climb over, usually cooler, in an enclosed closet. For the price I am a CFL die hard too, but in my situation I thank the canna god's for the smart ass Nihon brotha that came up with Light Emitting Diode's!

 

[Firebrand]

I'll tell you what, you fellas got it going on in here. I love the Skunk forum, got some great friends over there, but there is no comparison when searching for info. I good friend at Skunk sent me here and am I glad, one stop shop for unlimited info, you folks should be very proud of what you have here, great job putting all of this together, many thanks.

 

[relief]

Im in Texas. The average temp is about 115 degrees all summer long.

This particular LED will heat a room up the size of a bedroom quick, like a heater. With the lack of flowering and unexpected heat out put, Im kinda bummed about it. Im not giving up on LEDs, but Im pretty much done with this light.

Never in 9 years of growing sensi star indoors has it took this long to show any type of flowering. If it doesn't start flowering in another week... then I dont need to do anymore more testing with this light. My observations will be complete.

 

[Firebrand]

Here's something else that once read somewhere, I can't remember where exactly, I have never mentioned it anywhere so I have no feedback, but here goes...

I know I read that the LED should not have a glass lens to work through.

The lights from EBay have a piece of plate glass incorporated into their design, I am wondering if other LED's have this same feature, I am also wondering if there could be a gain from removing the glass?

 

[Desert Hydro]

i wont flower under LED but i LOVE vegging my small plants with them. i get better structure and short nodes and then i move to the big lights when i run out of room.

 

[Neekz]

Here's something else that once read somewhere, I can't remember where exactly, I have never mentioned it anywhere so I have no feedback, but here goes...

I know I read that the LED should not have a glass lens to work through.

The lights from EBay have a piece of plate glass incorporated into their design, I am wondering if other LED's have this same feature, I am also wondering if there could be a gain from removing the glass?

I did it, and even removed the front housing that overlapped the outer diode's. Side lighting improved alot, more even spread, as well as intensity (From glass...).

Not trying to be negative either relief. I just hope your investment pulls through for you, and would hate to see you give up early. Alotta L.E.D. grow's seem to take a bit to get the steam rolling early flower, but once they do, they pack on just as fast, if not faster some say. Addictedtogrow pulled a nice haul using similar panel's almost 3 year's ago right Here, so I still have faith your panels purchased this year should grow something. Even the old radioshack emitter's would make more bud then your making that panel out to be... Hope things turn around for you bro!

 

[positivity]

I'm in the same boat as you relief. My china panel sucks balls so far. I don't need a meter to tell me that. It's kinda sad these companies can make a light look so pretty but not pay attention to how it works. Mine has a heater effect also. That and the plants aren't enjoying the spectrum much at all.
At least it gives me a new respect for the more popular companies and how well their panels work.
I'm thinking of trying the sun system 315 cmh until these led companies figure out what works best. Red, blue, white, uv, ir, neutral, cool, warm, 3w, 5w, integrated......was gonna build a panel but I'll let the big boy companies figure this crap out for now

 

[Oregonism]

Here's something else that once read somewhere, I can't remember where exactly, I have never mentioned it anywhere so I have no feedback, but here goes...

I know I read that the LED should not have a glass lens to work through.

The lights from EBay have a piece of plate glass incorporated into their design, I am wondering if other LED's have this same feature, I am also wondering if there could be a gain from removing the glass?

You would be hard pressed to NOT find a commercial fixture without a lens especially in the 1,3,5w range. Maybe some of the newer types of larger chips are lens free, even Lumigrow's have em.

The other thing is that lights on Ebay are not Exclusive to Ebay either, lets make that clear. Most LED's period sans a handful of others, complete most of their stuff in the China. Drop shipping, importing, Ebay, most of it is coming from China. So more heavily marketed lights that sell for $100's more, have clones showing up on Ebay for half. Older HGL's are a prime example, you still see the 150xl knock-off's now.

With that said Firebrand, I would really question how poor the lens really are. Just because its on Ebay, doesn't make it a bad product just because of that fact, inversely, just because it has a huge sticker price, doesn't mean it is worth it either.

 

[Oregonism]

I think there still is a ton of ignorance on LED's, not that these China panels don't suck, [Sorry guys!] Spectrums are like bad days, everybody has a different one. The other things are spec sheets, bin #'s, and then having your leds sized to your drivers all while working with the heatsink properly.

Why so much trouble with these lights? Have you all had HPS or CMH crap out on you like this? They are all made in China too. Not really an argument, but maybe you get the point. Lot of variables, that haven't been illuminated, shitty joke.

The HGL line looks sick!