Best COB maximum Vf 34V?

I have an output 190V driver, with 3 cobs x52v = 156V.
I would like to plug another cob, so 190-156= 34V.
CXB3070 - 36V

Any better option than vero18???
Thanks

What driver, what cobs?

There is no 50v vero18 or cxb3070 for that matter.

CoqueKoke said:

I have an output 190V driver, with 3 cobs x52v = 156V.
I would like to plug another cob, so 190-156= 34V.
CXB3070 - 36V

Any better option than vero18???
Thanks

Click to expand...

What current does the driver output?

I already have 3x bxrc-30e10k0-b-73 (52x3=156 V) with a hlg-185h-c1050b driver(190V).
I am thinking to add another cob, but with 34V (190-156) or less i cant find a better one than a vero18 bxrc-35e4000-d-73 (29V).
Is there another better choice for that extra cob? Cxb3070bb and bxrc-30-10k0-d-73 both are 36V, so i will miss to get one of these good ones for just 2V

CXB3590 at 1.05 amps typically will draw just under 34v
The 3070 at 1.05 amps will typically draw just under 35v

How do you see that? What about 30e10k0-d-73?

Vero18 30e4000-c-73 seems to be 34.1

What about bxrc-30e10k0-b-73 @1.05??? Maybe i can add the cxb3590 or 30e10k0-d-73?? That would be so nice XD

FYI st that current your cobs will take about 50v a piece.

Any cob under 40v will be fine. just add a 29D if you want another cob. Plan bether in advance next time to avoid things like this

I run 6 vero 29B off an hlg 320 1050a and at full power it is about 1.4a @ 301v.

CoqueKoke said:

How do you see that? What about 30e10k0-d-73?

Vero18 30e4000-c-73 seems to be 34.1

What about bxrc-30e10k0-b-73 @1.05??? Maybe i can add the cxb3590 or 30e10k0-d-73?? That would be so nice XD

Click to expand...

The emitter datasheets have charts that detail the voltage -vs- current. So you can see the voltage for any particular current in the curve.

Yes! finally i saw the charts! @1050mA, each 30e10K0-b-73 less than 50.5V
30e10K0-d-73 @1050mA => less than 36.75V.
Then 3x 50.5 + 36.75 = 188,25V < 190V
I will get the 30e10K0-d-73 as an extra cob XD

i decided to get just 3 COB's, and bought all two days ago. Today i decided to put another one XD

Thanks all! It will fit perfectly the driver

So its perfectly fine to mix COB brands on same driver?
I can't see any issues with it besides one cob being brighter/dimmer than the others.

the brand is the same, Bridgelux, i think it will work (even it is another brand), in the end is just a circuit with 4 leds, 190V is enough to make them ON, so i hope it will work great.

Of corse there must be difference between B capsule and D one, % efficiency cause of current can make B to bright more than D one maybe? but it's light in the end XD of corse you can get a better set up for sure with 4 same leds but i already had the driver and leds, so its fine for me