Weāll try to be better next time. No confusing reservations, long wait time, etcā¦.
Hopefully we can get you less than 7 days delivery service after whenever you paid the orderā¦ā¦worldwide (or at least in USA, Asia, and Europe).
I will try to test all the LED to Maukka first for less guessing and post purchase disappointments (it feels bad on my ends you know ).
Still trying to get cheaper pricing by collaborating with some big manufacturers hereā¦.
And to make everything much simpler, only one order page/front page for all areas.
219B and 219C were measured at 700 mA, 144 at 1400 mA.
I have tabulated the results using both a diffuser (Convoy) and a reflector (Reylight Pineapple one for the 219B/C and Nitecore TM03 one for the 144)
All the tints from the hotspot with a reflector:
219B/C from the hotspot and midway through spill (very small tint shift):
144 from the hotspot and midway through spill (clearly a larger shift):
Superbly neutral tints from all the emitters. The 219B sw45k R9080 is clearly more magenta but in real life itās not bad, makes for very vivid colors (high TM-30-15 Rg index). Highest ever CRI Iāve measured from the hotspot of an led: CRI (Ra) 97 and R9 97.
The 144 are also very consistently amazing. Just pure white goodness. Even though the color temp shift is higher than on the single die emitters, the tint stays at the black body radiator line. Diffused they are absolutely perfect. With a reflector I measured significantly cooler color temps (about +700 kelvin) from the hotspot, but that doesnāt matter if you know what youāre getting.
I havenāt put any of these to a flashlight yet so cannot comment on the real life applications, but so far Iām very impressed.
Thanks to clemence and chouster for sending these!
Looks very good. Especially the 144AM. I wasnāt wrong about them
Interested in testing the 319As and NVSL219B-V1 sw40? Iāll ask Chouster to send them to you later
EDIT: Iām not a fan of 219B tint, but I never thought the CRI result is super amazing. Now I know why this one is so special for you guys.
Did anyone yet put a high CRI 144A in a flashlight with smooth reflector yet? My single sample produces an ugly yellow spot in the center of the hotspot, but it has a slightly uneven phosfor layer, perhaps otherās leds are better?
No no, donāt worry, this is another led with a much better phosfor distribution. But even a slightly uneven distribution with the phosfor just a bit thicker (=more yellow) towards the center (my led) already produces the effect in a smooth reflector (have not tried OP yet).
Ahhh, I seeā¦
Yes, smooth reflectors arenāt the 144Ax mates. I tried them in my predatorās reflector, many narrow TIRs, big reflectors, etcā¦always a slightly yellow center spot. Fixed easily with even very mild 5 degree diffuser. All medium, wide, and diffused optics worked great. Iām sure OP reflector will do OK since this the artifacts in 144Ax are much less problematic than XHP50
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 LEDās. 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.
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