Hey Jeff, I really enjoy your posts. Will you be using the Yuji LEDs to create an aquarium light? If so will you take some comparison pics of the lights?
Are there any other manufacturers that make high CRI LEDs?
Also, if you have used high CRI LEDs do you notice a difference in color rendering or aesthetic appeal of your tank?
Unfortunately no. One of the reasons I posted this is because I don't really want to buy $200 of SMD LEDs for 2 reasons. 1)just no cash for this at this time and 2) never soldered SMD diodes before.. which feeds into one and wasting $200....
Yugi had some "halogen type" based high CRI bulbs, but by the time I found them most were listed as "sold out" They diverged and don't have much in the line of tank friendly pre-built bulbs.
I'm contemplating a multichip or 2 but that design is not really what I want. I don't doubt they will grow plants well though. I don't doubt that colors won't be 'full" either..
Ideally I'd do 2 strips of SMD's w/ high K (5700) and low k diodes (2700)..Each one dimmer controlled separately..
Just adding the thought to the "possibility pile"..
They sell ribbons but at $197/5m and needing 2 reels (2700k unavailable at this time3200k is but not ideal) well.. I'll let deeper pockets consider that one..
doing it by "components" would be $95 for 100 of each of 2 colors.. Then I'd need to build the boards and buy dimmers design optics ect ect..
So the concept is great cost/benefit analysis at this time isn't
Basic design might be 120 diodes over a 3' tank (60 of each color 4 rows of 30 total) on a 6" slab of aluminum backed circuit board.. My head is swimming already..
As to other companies ..not that I am aware of..
I should state ONE big catch: Purple LED (which is the base diode for the really high CRI ones) don't seem to have the best run lifetime... and too much heat will shorten that a lot..
Now that is based on the large 1W or 3W emitter failures.. "purple" and UV diodes are not easy to manufacture...apparently.
BUt I believe people should be made aware of any tech beneficial to "us"..