Overwhelmed with Cob and driver choices

I'm a bit over whelmed. I am looking to set up a diy light for a cabinet I flower in. 2.5 ft deep. 3.5 wide and about 6 ft tall.

I have been using a roledo cob and a Mars 96 from Amazon with reasonable results. But I feel like I should be doing much better with the 350ish watts I'm using.

Where do I start? I want to make the most efficient light I can preferably consuming 300ish watts. Plants generally are trained and kept at about 2.5-3 ft Max.

The person to talk to when it comes to cobs is @CobKits he has great prices and selection and is very helpful

I use two GroowGreen 200w boards with two channels. One channel is 5000k the other is 3000k. I wire the channels in parallel and use a single HLG-185H-C1050B MW driver for a total of 200w 190lm/w of light and low heat. I run three GrowGreen 200w boards wired the same in a 2x4x6 and it kills it. The girls pray all day long. I run one in a 2x2 for veg and the girls love it.

VegasWinner said:

I use two GroowGreen 200w boards with two channels. One channel is 5000k the other is 3000k. I wire the channels in parallel and use a single HLG-185H-C1050B MW driver for a total of 200w 190lm/w of light and low heat. I run three GrowGreen 200w boards wired the same in a 2x4x6 and it kills it. The girls pray all day long. I run one in a 2x2 for veg and the girls love it.

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Grow green is garbage. They are Vegaswinners light that he ripped off from hlg’s quantum board design using cheap boards and different bin diodes

2 luminus cxm22, $38
HLG-185H-1400B $48
2x LED fancoolheatsink, $40
Driver for fan, $15
Cob holders $5
$146

This is the route im going, and from my research, these are the same Cobs Migro uses, and they rock from what ive seen.

GO a step further and get the same exact lens they use, and you just made a Migro 200 for a 3rd of retail

I've been liking the strip builds very efficient and I like the even coverage. Can also run them closer to canopy if space is an issue. You can pick Bridgelux EB series strips up for cheap or the Samsung f series strips which are little more costly but I feel it's a much better strip. If you want efficiency a strip build is where it's at especially if you got the money to run many strips softly.

InTheValley said:

2 luminus cxm22, $38
HLG-185H-1400B $48
2x LED fancoolheatsink, $40
Driver for fan, $15
Cob holders $5
$146

This is the route im going, and from my research, these are the same Cobs Migro uses, and they rock from what ive seen.

GO a step further and get the same exact lens they use, and you just made a Migro 200 for a 3rd of retail

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migro uses the larger cxm32

in my opinion the cxm22 is a better value and much more universal in the holder and reflector department

Hey Seedman!

A nice setup for your tent could be 6 2ft. double row F-Series strips and a Meanwell HLG-320H-48A. That's ~320w net./340w total, dimmable between 50 and 100%, ~52.000lm, 168lm/w, true 2,4μMol/J system efficiency.

Here are the strips(original Samsung LM561c/S6 bin):
https://www.digikey.de/product-detail/de/samsung-semiconductor-inc/SI-B8U521560WW/1510-2222-ND/6624006

And here is the driver:
https://www.mouser.com/productdetail/mean-well/hlg-320h-48a?qs=sGAEpiMZZMvS/YaWaOF373a3QApRwvdY

You need only some aluminum c-channel(2x2") to mount the strips on.(from scrapyard, Walmart or the next metal store)
And forget claims like above(190lm/w) he only want to push it's own scrap boards. Yesterday he recommend to run a CXB3590 at 150w, LOL! To get 190lm/w, the diodes would have to run at only 70mA, far away from 200w.
But, to be honest, the gg boards are not bad!
If they have the same diodes, they are as efficient as the F-strips, only the 190lm/w claim is exaggerated.
But with Samsung stripes you can spread the light better and be sure that you get real LM561c/S6 and nothing else.

I have both CXM22 and strips..... do the strips.

anyone for cutters..? http://www.cutter.com.au/

No, dont buy the strips, i need them last 6 for my prototype lol

key4 said:

No, dont buy the strips, i need them last 6 for my prototype lol

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Ohh, sorry! I forgot...

CobKits said:

migro uses the larger cxm32

in my opinion the cxm22 is a better value and much more universal in the holder and reflector department

Click to expand...

And more cobs with less wattage will give a better spread, allowing lower lamp height, definitely a consideration in a 6 foot space.

Randomblame said:

Ohh, sorry! I forgot...

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Do these strips f564b really need a heatsink @1amp (5 per 240h-48a/b)?

Wonder if this will work with an extra 2mm flat bar inside.

If you don't increase surface area it will just sink more heat before reaching the same temps. It only increases thermal mass.
The double strips get plenty hot if it is a hot day. You guys are in winter and may not be factoring that in.

Planb?

http://www.heatsinkusa.com

Check them out can get lengths of extruded aluminum heatsinks from 1" to 75" and have few different widths. It's sold by the inch. I thought of using these for my fb24b build.