Hey PH, a lights off closeup, maybe with the camera's macro setting on, would be great. Basically you're looking to see if the LED light's diodes has one or two semiconductors. You'll know once you look at them.
Let's say you come to the conclusion that CREE makes great 630nms, OSRAM Oslon makes great 450nms and LEDEngin makes the best 660nms. Do you know what a pain in the ass it is to make a panel with three different manufacturer's diodes? Not impossible mind you, but sooo many variations and variables, you might as well just use CREEs blues and reds. Now in China they have a standard LED package that all companies must adhere to, which makes manufacturing that much more simple right off the bat, that if BD wanted to use different manufacturers diodes, it would that much more easier. They still have lots of work to see how the diodes work together and that's R&D and I'm unaware how much BD spends on that. From the look of BDs they could come out of any LED sign factory in China, which really doesn't give me a lot of belief in their diodes capabilities. Especially when BD tells you nothing about their LED's specs.
