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Very nice.

Very, very good to know. Thank you.

http://pct.cree.com/dt/index.html Aladeen, or Aladeen? The world is your Oyster.

The B version allows one to use an external potentiometer and dim.

The 10x CXB 3070 setup would have been 1432.92 µmols/sec/m^2 in the 3'x3' full blast... way too much.

You could run 3 on an HLG-120H-c1400 4 on an HLG-185H-c1400 The driver cost is close to the same. I know the HLG-185H-c1400 can have an external potentiometer - you can smidgeon down your lights if you decide to use 8 cobs in your setup. Though, @Greengenes707 did mention that 8 COB's would be...

Why are you considering such a high CRI? Color rendering index is for our eyes. Lower CRI's give more PAR, I believe. Look at the vF consumed for each COB at a certain mA, and see how many times a drivers max voltage can contain them. example COB "x" has a vf of 32 @ 1400ma. Driver has max...

3500K BB 50.77% efficient at 164.541lm/watt, ran at 1400ma 8197lm has a vF of~35.59 emits 50 dissipation watts (heat) (you have room for a 4th CXB3070 on that driver, close to 36 vF is still available for monos or a cob) Driver capacity = 148 vF 148 - (4(35.59)) = 5.64 remainder capacity. I...

Convert your old Mars similarly.

Love your avatar, btw. I used to play Chrono Trigger tons.

HLG-185H-1050 ----190v max volts vF of VERO29 3500K @ 1050ma =~36.4 190v/36.4v=5.21--->5 Looks like 15 cobs should work for 3x HLG-185H-1050's

In terms of what will work best for the drivers - HLG-185-1400 fits 4 CXB 3070 HLG-185-1050 fits "5.5" CXB 3070 --->5 HLG-120-1050 fits "4.3" CXB 3070 --->4 HLG-120-1400 fits 3 CXB 3070 If you are fixed on 6 cobs, go for the HLG-120-1400 Why not purchase 2 more and use 2 HLG-185-1400 and...

I'm certainly going to have to wait another 2 weeks before I can order heatsinks and drivers. I can barely contain my excitement. Have a great Sunday night.

Just pushed my order through. Happy growing, all.

Hey @Greengenes707, you just added new stuff to your store! Ratchet hangers, thermal pads, Ledil diffusers... I was looking for those too! Are you putting up any other products? Thanks again buddy.

Thank you for the quick reply and advice. I was tempted by the hlg 240 1400... but I kept thinking that I'd be dimming the setup as well, so I think I'll stick with 8 COB's on 2x hlg 185 1400. I'm more familiar with mycology, the next COB project I have after getting the tent up will be for...

Back when I entertained these, I did not know how COB's fit on drivers, in the sense of Fv. The COB's I had found on newark were a really good deal at the time, and I was hasty to make a purchase and start a DIY build. Sadly, some of these COB's are no longer available, so I'm sticking with...

I've lurked the forum's for quite a while now, and initially wanted to start with a 4x4 area. After realizing that I do not have as much to pay for a large setup, I've brought myself down to a 3x3 tent. I've been trying to figure out if I should put 8x CXB 3070 3500k BB onto 2x...

Oops. I meant 12 @ 700ma with 2 HLG-120H-C700 drivers? (6 per driver)

So far, I'm finding all kinds of opinions about how much coverage is needed. How many lumens for veg, and for flower varies quite a bit. If my math is right, running 12 CXA 2540 5000K on a HLG-120H-C350 would have a lm50c of 2163 each. For 24 CXA's on two of these drivers in a 16 sq ft space-...