If you look at Djozz’s measurements of the Luminus 1800K, the CRI and R9 is no match for the E21A 2000K. At the lower output levels, the E21A is 95CRI with R9 above 95 despite rated as 9050!!!
Also with the Luminus 1800k, you can see the DUV is a whopping +0.0042. At those warm temp, such a high DUV will render everything uncomfortably yellow. If there exist a below BBL bin, that would make this emitter more interesting but it still won’t have the candle like color rendering of the E21A.
PWM is absolutely a no-no for a photography light. For this FF mule, it will not have PWM for the regulated levels so I will be switching over to this as my light for sure.
Of course, E21A 2000K is superior in every way except it is not 1800K.
Luminus Xnova Cube 1800K CRI90 is better than other amber leds with 1700K or 1800K CCT. I would try a Lee Zircon 803 or a Lee Zircon 802 filter to decrease DUV.
A bit off topic, but using official specs for red and osram color calculator :
2000+red : 1325K duv –0.0040
2x2000+red : 1505K duv –0.0040
3x2000+red : 1683K duv –0.0033
No idea about color rendition since I don’t have red spectral data.
So using Virence quad mcpdb you can mod yourself an ultra low CCT light (or ask him for a mod)
I’m quite the pillock……
Awaiting the reviews!
Well, I am not nearly as skilled, as I could safely make experiments with Virence MCPCBs, so I just hope, somebody other will :innocent:
These look really interesting.
I would be interested in a 4500k or 5700k.
Beamshots? These would be very flood lights right?
Any chance for tint mixing? 3000K on the 12 outside E21 and 4000K for the 9 center index or something similar?
These lights will have no beam at all - just 180° of pure flood.
interested in:)
Interested as well. Will any updates be posted in this thread?
Are there any chances for 2000K?
Will it charge with a USB-C to USB-C cable or will it only work with a USB-A to USB-C cable. Also, will it have a tripod mount hole? Thanks!
I’m wondering about Anduril version as well 
IMHO 21x optisolis would be a better idea for a mule.
my 6x mule is visibly better than an any e21a light I have tried
Not really, I have several Optisolis lights and I prefer the E21A tint much more than Optisolis. Optisolis is above or just on the BBL whereass E21A is just on or below the BBL. The DUV makes the most difference but ofcourse it is personal preference. Also the Optisolis is larger than E21A and much less output. E21A is a much better emitter for a high powered mule.
re tint: this is certainly a matter of personal preference. I hate anything rosy and much prefer daylight tint, but this is just me.
re output: I have used my optisolis mule daily and from my experience, it can safely run @300ma, or 1W, or 100lm per led, with short pulses twice that much. So in real life, the output in such a small light would be limited by thermal (anduril is known for that), regardless of the LED type
None of the E21A I’ve seen have been particularly rosy. They look very clean and neutral.
None of the E21A are super rosy like the Nichia sw45k. They are very neutral with no green at all. The 4500k E21A is the rosiest of the bunch I’ve seen but still no sw45k. Optisolis in comparison is more on the green side, but is closer to daylight. I prefer E21A tint much more than Optisolis. Also the Optisolis is much bigger and require a larger host but still much less output and efficiency. Though if you want to create a sunlight simulator, Optisolis would be the best option.