IF you are new to LED and want help choosing what to buy, POST HERE!

OneHitDone said:

I am enjoying following all of this led information
Personally I am not 100% sold that cob is it
Look at what Greengenes is doing with the AT600. Haven't seen a cob produce more impressive visual results yet
I think there still may need to be more research and testing to find the "secret sauce" spectrum if one is to save electricity while still delivering the goods

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Look at what greengenes is using to try and outperform the Apachetech gear!

Will this work for a 2 x 2 tent? Would a 3000k + 5000k be suffucient for flowering in a 2 x 2 tent? Would i be better off using a 250w hps? I work long days and run errands like crazy in the evening. I don't have the time to do hours of research. Hoping all the pro's out there could give me a yay or nay on this.

I found the following deal for $52 at aliexpress (link at bottom):

1. 100W LED Driver
Delivered Power: 100W
Input Voltage: 85-265VAC
Output Voltage: DC30-36V
Output Current: 3000mA

2. LED lens+ Reflector+ Braceket
Bean Angle: 60-80degree
Light transmittance: 98%
1pcs 44mm Glass Lens
1pcs 50mm Reflector
1pcs fixed bracekt

3.100W LED
Color: Warm White 3000-3500k,Cool White 6000-7000K
Forward Voltage: DC 32-34V
Forward Current: 3000mA
Led Luminous: 10000-11000Lm

http://www.aliexpress.com/item/100w-high-power-led-100W-Waterproof-LED-driver-heatsink-Lens-with-Reflector-Collimator/32389751334.html

Are all of the following compatible?? Will 2 of these units in a 2 x 2 space be sufficient or overkill?

100w high power led +100W Waterproof LED driver+ heatsink+ Lens with Reflector
http://www.aliexpress.com/item/100w-high-power-led-100W-Waterproof-LED-driver-heatsink-Lens-with-Reflector-Collimator/32389751334.html

Freeshipping!1pcs Cree XLamp CXA3070 led 74-117W COB EasyWhite 5000K Warm White 3000K LED Chip Emitter Light
http://www.aliexpress.com/item/Freeshipping-1pcs-Cree-XLamp-CXA3070-led-74-117W-COB-EasyWhite-5000K-Warm-White-3000K-LED-Chip/2052849889.html


Freeshipping!1PCS Cree XLamp CXA3590 90-150W COB EasyWhite 5000K Warm White 3000K LED Chip Emitter Light
http://www.aliexpress.com/item/Freeshipping-1PCS-Cree-XLamp-CXA3590-90-150W-COB-EasyWhite-5000K-Warm-White-3000K-LED-Chip-Emitter/32262275004.html

You can't really go wrong with hps since it's old and proven technology.

The crees aren't compatible with the driver from that "high power led + heatsink driver combo"
The led driver puts out 3A and the max amp a 3070 takes is 2.8A or you risk end up frying it.
The 3590 isn't compatible with it either and it's likely a shit driver anyway.

Besides that the "100w high power led" is either not 100 watt or it certainly does not put out the lumen the description says it will put out.

Bonjour
And this seller do not talk about the BIN of the cob...so i believe that he sell only the lower BIN cob.
I would not buy from them if i was you.
The best BIN for 3590 is CD and just under there's CB and 4 X cxB (not cxa) 3590 36V (cause there's 72V) will fit on a hlg-185-1400.
Have a great day★

@not4n checkout kingbrite http://kingbriteled.en.alibaba.com/ this is where I get my Cree from good prices as well

Anyone experience with Nichia cobs?
According to they the series 30 puts out 127 lm/W @1150 mA and 40.3 V
http://www.leds.de/en/High-Power-LEDs/Nichia-High-Power-LEDs/Nichia-Chip-on-Board-Modul-Serie-130-warm-white.html
They're also cheaper than the Cree 3070

I'm looking to upgrade from my closet to a grow tent(4x4). This is my second grow and I'm just using 2 68 watt CFL's. I know isn't much but was a test grow and I enjoy growing. Really looking into getting a higher end LED light, been researching them and idk what I'm looking for. It's just a big run around. I'm not into a DIY yet. Just would like some input and suggestions on what to look for and a good company. Thanks

HoLeSchit said:

I'm looking to upgrade from my closet to a grow tent(4x4). This is my second grow and I'm just using 2 68 watt CFL's. I know isn't much but was a test grow and I enjoy growing. Really looking into getting a higher end LED light, been researching them and idk what I'm looking for. It's just a big run around. I'm not into a DIY yet. Just would like some input and suggestions on what to look for and a good company. Thanks

Click to expand...

What's your budget and where are you located?

Bad Karma said:

What's your budget and where are you located?

Click to expand...

Around 2k but probably 1500ish after the tent,inline, etc and Ohio

HoLeSchit said:

Around 2k but probably 1500ish after the tent,inline, etc and Ohio

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Great, you're in the US, so shipping won't be an issue.
For LED light panels, Apache Tech, and Area 51, are considered the best.
For COB light panels, Optic, Heavens Bright, and Pacific Lighting Company, are leading the way.
COB's are basically the next generation of LED's, as they're more powerful, and more efficient. The also cost less than LED's, too.
With that kind of budget, you should be able to get a top notch light, for your plants to enjoy.

Got my cob 35 95s at 72 volts. question is the power supply

will the mean well HLG-185H-C700A power 4 of these in series? Max voltage is 264 to 286 depending on which spec sheet i look at. 72 time 4 = 288 volts. So is the almost voltage ok or do I need a different driver?

Boppa said:

Got my cob 35 95s at 72 volts. question is the power supply

will the mean well HLG-185H-C700A power 4 of these in series? Max voltage is 264 to 286 depending on which spec sheet i look at. 72 time 4 = 288 volts. So is the almost voltage ok or do I need a different driver?

Click to expand...

You'll be fine because that's what I use with no problems

Bonjour
I am going to buy my 3590 from kingbrightopto!
The question is: should i take 3000K or 3500K? The highest BIN for 3000 is CB and 3500 is CD right...?
Do i have to take the 2 or 3 step?
And finally 36 or 72 V? What is the difference, except you don't need the same driver (hlg-185-1400 36V/hlg-185-700 72V) which one is the best or not...
Have a great day★

frica said:

Guys at 420 told me the 300Watt Old Model Marshydro was good for my 2x2 foot growtent.
Then I found out too late that the people with knowledge are here.
Not that I wasted much money, and 150 watts is enough for now but I will go diy Cree/Vero the moment it shows signs of deterioration.

The people here are a lot better.

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Hello Frica, I am here and would like to help

@Sarahu

Hi, Im goignt to buy two NICHIA 130B R8000 bin

http://www.leds.de/out/media/NFDWJ130B-E.pdf

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Im want more than 10k lumens, and this 2 COBs have 11820 theoric lumens at 1.15A and 46,45W, with 127 lum/W. Its good idea? Something better? How to power them? Thanks

It's not that Mars is that bad, it's that it's more expensive than Vipar despite having no difference in quality most likely.
And for the expense of Mars, I've learned that I can DIY my own cobs with better efficiency.

200watts Vero29 3000K. Me personally? 4 200watt optics= $1900 in a 4x4 = initial investment is worth it!

littlejacob said:

Bonjour
I am going to buy my 3590 from kingbrightopto!
The question is: should i take 3000K or 3500K? The highest BIN for 3000 is CB and 3500 is CD right...?
Do i have to take the 2 or 3 step?
And finally 36 or 72 V? What is the difference, except you don't need the same driver (hlg-185-1400 36V/hlg-185-700 72V) which one is the best or not...
Have a great day★

Click to expand...

https://www.rollitup.org/t/realstyles-6th-diy-cxa-3590-5000k-db-bin.864284/

this is the one I am building in 3000k 72 volt