Ok, I just put the 144A in an insulation gasket and tested it with 50 mA from my power supply (sorry for not taking pictures, but I needed all of my hands):
- With aConvoy C8 OP reflector there is a very visible yellow spot in the center of the hotspot.
- With this 52.7 x 57 mm SMO reflector the hotspot is much more intense and there is only a little bit of yellow seen on a white wall.
I guess that the deep reflector directs more light into the hotspot and thus mixes the colors better. When you optimize the focal distance it might become completely invisible, only I do not have the equipment to try that.
My 144A shall go into a McR-27S reflector that I am currently waiting for. When it arrives, I will appentd my findings.
I see the m43 being the perfect host for these 9080 LED’s. That way you have enough of them to get some good output and it would make a truly amazing photo light.
I took a few pictures today with my triple 9080 and the color is fantastic. It really does make every other LED I own look bad.
Got my McR-27S today. The hotspot also has a light yellow center, but not as pronounced as with the C8 OP reflector. Maybe the XM-L gasket that I use does not adjust the 144A in the optimum focal distance. I still have to check that.
- No stock for all Ra9050 and Ra9080 219B/C series. The lead time could be anytime between 1,5 - 2 MONTHS!
Nichia headquarter decided to (temporarily?) stops the sw45k production. Don’t know why. 4500K has been a rare CCT in Nichia these days. My earlier sm453 9050 144A purchase delayed by almost a full month. Then I only got sw45k 9080 219B in limited quantity.
I’m still trying to get whatever stock left there.
I am pussled about that if you mean cooler than the spill. I would have expected the opposite?
Is’nt the hot spot supposed to be warmer as the reflector collects the (sideways) rays that have passed through most yellow phosphor?
All the Nichias I have tested have a cooler hotspot than spill. Cree is opposite. What I meant that the difference was larger than with the 219 series. This might have something to do with the two stage reflector of the TM03 (which also hides any egg yolk effect djozz also mentioned). I tested a 144 series led with a normal reflector (from the X6) that produced the warm yellow center.