COB Manufacturers other than CREE or BRIDGELUX

[bassman999]

I've ordered the bits tonight to make some improvements on my previous efforts. Should have it all in my hands this week (touch wood). Maybe I'll have 30x COBs on a 600w driver done by next weekend as a prototype? Maybe I won't. If I didn't have a day job I could probably have the whole setup complete in a week. Who knows? Not me!

My plan was originally to run the cheap chinese COBs as a test. See if the water cooling setup worked. Iron out any issues that crop up over the course of a few months. If it worked I was going to upgrade to CXB3590s. It would have been insane to spend thousands of £££ on a 3600w CXB setup when I hadn't even grown any weed before and didn't know if water cooling was feasable. The Citizens were just too good a deal to pass up so they're the new upgrade

Imagine the price difference with the cxb3590s in place of the discounted Citis

 

[CobKits]

HOLY commercial setup Batman

250 COBs is a great score & ur gunna need a bigger Loft

VG

smokin deal. those 046's are only 10% down from the current gen. you'll be crushing some efficiency numbers with that many chips

 

[ttystikk]

I've ordered the bits tonight to make some improvements on my previous efforts. Should have it all in my hands this week (touch wood). Maybe I'll have 30x COBs on a 600w driver done by next weekend as a prototype? Maybe I won't. If I didn't have a day job I could probably have the whole setup complete in a week. Who knows? Not me!

My plan was originally to run the cheap chinese COBs as a test. See if the water cooling setup worked. Iron out any issues that crop up over the course of a few months. If it worked I was going to upgrade to CXB3590s. It would have been insane to spend thousands of £££ on a 3600w CXB setup when I hadn't even grown any weed before and didn't know if water cooling was feasable. The Citizens were just too good a deal to pass up so they're the new upgrade

I too run water cooled COB LED. I'm very interested to see how you build yours, and what results you see from them.

 

[ttystikk]

Imagine the price difference with the cxb3590s in place of the discounted Citis

I don't need to imagine. Think new hot tub. Maybe two.

 

[loftygoals]

I too run water cooled COB LED. I'm very interested to see how you build yours, and what results you see from them.

...

You have the memory of a goldfish! You posted in my build thread

https://www.rollitup.org/t/water-cooled-cobs.909674/

 

[ttystikk]

...

You have the memory of a goldfish! You posted in my build thread

https://www.rollitup.org/t/water-cooled-cobs.909674/

Guilty. .I smoke what I grow. How's that for turning a negative into a positive? Lol

 

[salmonetin]

...maybe the philps way?... ...they have other white led tubes too... http://www.lighting.philips.com/main/products/led-tube...

...and horticulture tubes too... the Tled...

http://www.lighting.philips.com/main/products/horticulture.html

http://www.lighting.philips.com/main/products/horticulture/products.html

http://www.lighting.philips.com/b-dam/b2b-li/en_AA/products/Horticulture/Horticulture-products/general-booklet-philips-horticulture-2015.pdf

http://www.lighting.philips.com/b-dam/b2b-li/en_AA/products/Horticulture/Horticulture-products/Leaflet_Tissue_Culture_Philips_Horticulture.pdf

...its only for take ideas... examples...

pd... maybe a comparative on actuals led tubes ... cree.. philips... maybe transcend... and others brands off course... maybe its only my wish...



Saludos

 

[frica]

Those Phillips horticulture LEDs are efficient though a little pricy.
The Gen2 model also has some more colour options than just red/blue.

 

[salmonetin]

....on osram...

https://ledlight.osram-os.com/applications/horticultural-led-lighting/horticultural-lighting-products/

....ledengin have red and far red and whites too...

http://www.ledengin.com/applications/industries#horticulture

http://www.ledengin.com/products/emitters#LZ1

http://www.ledengin.com/products/emitters#LZ4

....curious white spd...

http://www.ledengin.com/products/gallerywhite

...on uv... http://rayvio.com/sb4/
...uva and uvb... on stars... ....i dont have idea of her prices... or availability...

...its only for examples or take ideas....my pov...



Saludos

 

[organic-fanatic]

Bahahaha!!

Now I've completed a grow I plan on experimenting

I'm going to run 90x water cooled CLU046 COBs at 20w (36V @ 0.55A) each per 8x4 area. So 900w per 4x4... at around 1300 PPFD (may or may not be a little higher because I'm water cooling and so COB temps shouldn't be as high).

That is top lighting.

Then I'm going to add 8x CLU046 COBs at 20w each passively cooled as side lighting per 4x4 (2 COBs from each corner). That should give me an extra 270 PPFD under the canopy.

I wonder how much I could grow per 4x4?

I was planning on doing a Cree CXB upgrade which would have cost several thousand £££ but the Citizens make it sensible to just go ahead and do it now

Bahahaha!!

Now I've completed a grow I plan on experimenting

I'm going to run 90x water cooled CLU046 COBs at 20w (36V @ 0.55A) each per 8x4 area. So 900w per 4x4... at around 1300 PPFD (may or may not be a little higher because I'm water cooling and so COB temps shouldn't be as high).

That is top lighting.

Then I'm going to add 8x CLU046 COBs at 20w each passively cooled as side lighting per 4x4 (2 COBs from each corner). That should give me an extra 270 PPFD under the canopy.

I wonder how much I could grow per 4x4?

I was planning on doing a Cree CXB upgrade which would have cost several thousand £££ but the Citizens make it sensible to just go ahead and do it now

Would you share how you plan to water cool them ?
I am very interested in water cooling, vs active or just passive, but i have no idea how to....thanks in advance for your reply.

 

[Levradus]

I got some Samsungs I run 12 on an hlg 185 500c 146-154 lm/w. Super great heat dissipation and the holder is built in with pretty hearty wire clip in that you can utilize from two different angles. Really impressed with Samsung cobs

I couldnt find holder for my LC040B models which is also samsung

 

[frica]

Water cooling for 20W CLU046s...

The pump to circulate the water will likely use more energy than the efficiency of the COBs increases.
Water cooling is more attractive for really high power COBs. imo.

 

[ttystikk]

Would you share how you plan to water cool them ?
I am very interested in water cooling, vs active or just passive, but i have no idea how to....thanks in advance for your reply.

Funny... I've been running high power water cooled COB LED for 6 months and no one asks me shit.

 

[ttystikk]

Water cooling for 20W CLU046s...

The pump to circulate the water will likely use more energy than the efficiency of the COBs increases.
Water cooling is more attractive for really high power COBs. imo.

It's good for cooling any COB that needs it. You're right about that need bring diminished for softly driven COB LED. On the other hand, such a user is clearly willing to spend whatever it takes to get the very most efficiency possible and so would very likely be interested in the additional performance to be gained.

I'm running my chips at 54W each and they'll get hot without active cooling. That's soft enough to get good efficiency gains, yet still hard enough that active cooling will be beneficial.

 

[organic-fanatic]

It's good for cooling any COB that needs it. You're right about that need bring diminished for softly driven COB LED. On the other hand, such a user is clearly willing to spend whatever it takes to get the very most efficiency possible and so would very likely be interested in the additional performance to be gained.

I'm running my chips at 54W each and they'll get hot without active cooling. That's soft enough to get good efficiency gains, yet still hard enough that active cooling will be beneficial.

Would you share how you water cool your cobs ?
I would be grateful, thank you.
There is a huge gain in efficiency & more light not to mention life of the cob keeping them closer to 25c the difference between 25c and 85c can be as much 12%. Seems like it might be worth it.
How much extra electric to run your water cooling ?

 

[ttystikk]

Would you share how you water cool your cobs ?
I would be grateful, thank you.
There is a huge gain in efficiency & more light not to mention life of the cob keeping them closer to 25c the difference between 25c and 85c can be as much 12%. Seems like it might be worth it.
How much extra electric to run your water cooling ?

Screw them down to water filled blocks.

I run my chips at 10-12 degrees C.

The efficiency gain is significant for some and negligible for others. Eye of the beholder and all that.

 

[organic-fanatic]

Screw them down to water filled blocks.

I run my chips at 10-12 degrees C.

The efficiency gain is significant for some and negligible for others. Eye of the beholder and all that.

Thank you, where can i find these blocks.
Do you have any pics of your setup ?

 

[JorgeGonzales]

@ttystikk

From an efficiency standpoint, it's a tradeoff between COB efficiency and the additional watts drawn by fans or water pumps and chillers. How much juice does your water setup use?

 

[ttystikk]

Thank you, where can i find these blocks.
Do you have any pics of your setup ?

In my thread, link to which is in the signature line of every one of my posts.

 

[ttystikk]

@ttystikk

From an efficiency standpoint, it's a tradeoff between COB efficiency and the additional watts drawn by fans or water pumps and chillers. How much juice does your water setup use?

No, that's a false assumption. The heat generated by lighting must be removed somehow. I'm using the same water chiller to cool my lights as my room. The difference is that I'm removing the heat from the lighting before it has a chance to heat the room.