have you measured power output on them yet? killawatt meters are cheap and gives you very specific data on what your fixture actually does at full power or dimmed ect.maybe you hit the limit on the drivers because you wired too close to max power? drivers could go into "limp mode" and be putting out a fraction of full power idk,just something to consider.
I do have a kill a watt thingy, I tested it on one of the 4000k D cob fixture I built (was 3 cobs) and it was pulling exactly 250 watts on a mean well hlg 240 2100b driver. I will have to try it with the next 9 cob 3000k fixture I need to built yet (build it in 3 sections, 3 cobs per bar/driver). I am using a mean well hlg 240 1050b driver with the 3 3000k C cobs.
No, the ~68v version
I would check the cobs themselves. I built a light, hung it, switched it on and it didnt look as bright as I expected. I went and checked my remaining cobs and I had been sent D voltage instead of C voltage cobs. Returned them obviously but worth checking...
320H-C2100A is a little saver, only half the voltage.
Thanks for the help, but how can the 320H-C2100A run 4 68v cobs? from what I see it has only 152v max
two leds in series, two parallel, every led gets 67V and 1050mA.
I see, thanks.
yep, which is what i ordered, just does not seem nearly as bright as the d 4000k 80 cri ones I have.
Just checked data-sheet. The 3k C version should have more lumen on the same power than the 4k D version. Is there a redshift which lowers the lumen?
It may just be my eyes or because its in my flower room with gavitas, de 630 watt cmh and other led fixtures that it doesn't seem as bright as my vero 4000k veg lights.. plus it is not as white a light as the veg lights, more yellow looking so could be why it does not seem as bright to me. Even when I lit it up on the bench though to test after building it it did not seem as bright. again maybe its the color temp difference.
Yep thats the C Gen 7 cob. Check with the killawatt and if pulling the right power it must be your eyes playing tricks.
That is perfect. Vero C @ 1050mA = about 70 watts each. All good.
