CobKits
Well-Known Member
robins and malocan's tests had similar results
COB Manufacturers other than CREE or BRIDGELUX
- Thread starter qwerkus
- Start date
JorgeGonzales
Well-Known Member
This is what really hammered it home for me:
Lower temp, higher CRI, still coming out ahead.
Levradus
Well-Known Member
I am currently using 4 LC040B with couple monos...
loftygoals
Well-Known Member
Just ordered 250x Citizen CLU046-1212 units. 180 for flower (3500k), 30 for veg (5000k) and 40 more (3500k) to play with side lighting 
Gonna have some fun with these things
@Will Thayer helped me out on sourcing. At £2.20 each after delivery and considering I already have suitable Meanwell HLG-600h drivers I had to jump on them. Thanks a lot!
Gonna have some fun with these things
@Will Thayer helped me out on sourcing. At £2.20 each after delivery and considering I already have suitable Meanwell HLG-600h drivers I had to jump on them. Thanks a lot!
verticalgrow
Well-Known Member
Just ordered 250x Citizen CLU046-1212 units. 180 for flower (3500k), 30 for veg (5000k) and 40 more (3500k) to play with side lighting
Gonna have some fun with these things
@Will Thayer helped me out on sourcing. At £2.20 each after delivery and considering I already have suitable Meanwell HLG-600h drivers I had to jump on them. Thanks a lot!
HOLY commercial setup Batman
250 COBs is a great score & ur gunna need a bigger Loft
VG
loftygoals
Well-Known Member
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
Airwalker16
Well-Known Member
Holy shit this will be great to see. How are you gonna be mounting these 180 1212's?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
verticalgrow
Well-Known Member
i cant wait to see that setup.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
Are u gunna do a journal
VG
bassman999
Well-Known Member
What do ppl here feel about 90 cri vs 80 cri in 3500K for flowering?
Airwalker16
Well-Known Member
Minimal difference.
bassman999
Well-Known Member
119lm/w 80 CRI vs 144 lm/w for 80 CRI in the 3500K CLU046-1212
nevergoodenuf
Well-Known Member
@bassman999 check out the last couple papers of my journal. I did a CRI test, including lab results. Sorry it was so well hidden, but no time for multiple threads, let along one
bassman999
Well-Known Member
Ill check it out right now@bassman999 check out the last couple papers of my journal. I did a CRI test, including lab results. Sorry it was so well hidden, but no time for multiple threads, let along one
Airwalker16
Well-Known Member
That's a significant difference. Wow.
bassman999
Well-Known Member
I just dont know what is better more total light or more light in the precise spectrums
loftygoals
Well-Known Member
A dollop of thermal glue... and tada! Worked perfectly for my current setup. The alternative would be kapton tape and thermal paste which is probably more fragile but would cool marginally better. Mounting COBs onto water blocks in any other way is difficult. You can't screw into a water block...
I will try. At the very least there will be pics of the finished setup.i cant wait to see that setup.
Are u gunna do a journal
bassman999
Well-Known Member
I am interested in seeing the waterblocks.A dollop of thermal glue... and tada! Worked perfectly for my current setup. The alternative would be kapton tape and thermal paste which is probably more fragile but would cool marginally better. Mounting COBs onto water blocks in any other way is difficult. You can't screw into a water block...
I will try. At the very least there will be pics of the finished setup.
My setup now is paste and kapton, but it starts to peel on some edges after a few grows, at least mine did
Airwalker16
Well-Known Member
Wait... so you're gonna be using those like 2"x5" water blocks? That's gonna be a fuck load of gluing and water blocks. I'm very interested in how this is going to even work. When will it be complete?A dollop of thermal glue... and tada! Worked perfectly for my current setup. The alternative would be kapton tape and thermal paste which is probably more fragile but would cool marginally better. Mounting COBs onto water blocks in any other way is difficult. You can't screw into a water block...
I will try. At the very least there will be pics of the finished setup.
loftygoals
Well-Known Member
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