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I built a similar little light using 3070 4K's and cree 660's. I ran them all off an hlg700ma. It was a test build so I didn't put much into it. But a way I thought that might work to have red on/off control at least was to use a switch to bypass the reds straight to the next COB. And the other position would be running though the reds just like oyu have it in post #15. It would only allow on/off, but would be better than no control, and would give simple electronics and lower cost. I am just not sure if there would be a problem for the driver to run a switch like that while the sting is on.Right, each star drops about 10V @ 500mA. (The four internal diodes are connected in series.)
I was thinking about asking on the forums if the LED Engin stars were any good but these are new and improved so I'm in. ;)
You should buy your CXB3590 from them as well. The guy from RIU got the kingbrite info from me and he also bought the cobs for $51 each to bin just mention Realstyles. I'm one of their best customers. I have already purchased 83 CXB3590's and some are 6500k DB and DD bin My last order was 51 that brings my total up to 159 3590'sA guy at RIU just built a six COB pentagonal luminaire using these lenses and the benefits outweigh the negatives, I'm hoping. I'm specifying medium speed fans instead of slow speed because I want to be sure enough heat is removed from the backside of the COBs. Opticgrowlights is selling premade COB luminaires with lenses.
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