Has anyone gotten an E17a quadrix to fit in a 1 x AA/14500. Since I missed the Jetusolis GB, I want to make 3 Tool AA Quadrix setups - 1 each at 2000K, 4000K, and 5700K. I could probably file down a 16mm E17a board to 14mm but I’m afraid to damage the E21a emitters.
I have quite a few 219b R9080s in different tints (3000K, 3500K, 4000K, and 4500K)so that’s the backup plan but I love the range of tints and the ability to mix with the Quadrix setup.
Filing down a 16mm seems like it should be a reasonable solution, as long as you’re careful not to touch the delicate phosphor coating on the emitters while handling it.
I also remember Clemence saying something about being careful not to damage the ceramic insulating layers when drilling. I’d suggested making your filing motion mainly around the circumference, rather than up and and down.
1 x E21A would be an option, except the 10mm single emitter boards are out of stock, and if you’re using a 14500, that might be a bit much for the emitter.
Maukka, have you done this same output/voltage sweep on a 9080 version e17a yet? Is it possible for you to do one if not? I’m very curious how the 9080 Vf and efficacy look.
Thanks!
Clemence lists all of his E17A’s as R9080 except the 2000K and 2200K. But even the 2000K actually tested at R9080.
The voltage curves should be generally similar, although it is possible they are of different bins, and within a voltage bin, there can hypothetically be up to 0.2V difference at 350mA.
Output can be estimated by multiplying by the ratio of the output bins, which are given as BXX for the E17A.
So to estimate the 4000K (B11) at a given current, take the output of the 6500K (B12) and multiply it by 11/12. For the 2000K, multiply it by 8/12.
hello, when will triple e21a for fw3a be available?
I am also interested in this. With the new Lume1 driver on the way, I would really like to put some E21a emitters in my fw3b to make it match my brass d4v2.
Anyone in the US have a single E21A or E17A they would be willing to put in an envelope and send (will pay obv).
I want to to try it in this Olight:
yes
pm me your address 
Can you please tell me if this mixture of diodes will be pinker than nichia 219B sw45k?
Thank.
yes
the blended tint is farther below the bbl than sw45k
I’m looking at replacing my XM-L2 Convoy S2+ (which I use for night photography illumination) with something similar, but with warm, and neutral-cool high-CRI emitters. Would love to see a quad E21A Convoy S2+ (or in a similar host, with good range of brightness steps). The Noctigon KR4 now has E21A options, but as I want 4 lights (2 warm, 2 neutral-cool) that would be prohibitively expensive (and I don’t need silly aux LEDs).
Has anyone succeeded at replicating the tint of 219b sw45k using a combination of E21A (or even Optisolis?) The 4500K E21A on its own looks far less rosy.
Using osram color calculator and integrated measurements at 700mA
3x6500+1x2000 = 5092K –0.0080 , CCT too high
2x6500+1x5700+1x2000 = 4891K –0.0080
1x6500+2x5700+1x2000 = 4697K –0.0079
1x6500+1x5700+ 1x5000+2000= 4548K-0.0075
4500K = 4467 –0.0038, so with the last mix you can get a lower duv at ~4500K, but not quite like sw45k, which at 2.8A must be under –0.01
Clemence had a nice chart showing how the tint results with each mix.
https://www.flickr.com/photos/140459745@N04/46543309595/in/dateposted-friend/
I find the 4500K E21A already nice and rosy.
If you mix 2x 2000K & 2x6500 you will get VERY rosy. In this extreme case, the tint mixxing is very important, so you need to use the right optic.
VERY true,
duv of sw45k is lower than the duv of E21a and Optisolis
if you want sw45k tint, why not use sw45k?
I tried E21a, and also Optisolis, to give myself a chance to see them for myself.
then I went back to sw45k, and I am happier with the more pink tint (lower duv)
it is also easier to buy and reflow mcpcb for sw45k, than for E21a and Optisolis.
Mixing E21A is advantageous for lower CCTs because there are no available LEDs with rosy tint at low CCTs and we can achieve <–0.01 duv by mixing 2000K+ 4500K or above.
good point, maybe… depends on what CCT is the desired objective
your post with mixing calculations were not lower CCT than sw45k, so I dont see a good reason to do that,
sw45k already works without the extra hassle of mixing different CCT, plus mixing LEDs adds an additonal requirement to use optics to blend the separate LED beams
Yeah, drgentr asked for 4500K so I tried to get close to it, I agree it’s not worth it.
For lower CCTs, here are the tints I get in a tint ramping flashlight for example :
Using 6500K-2000K would have lowered the duv even more, as shown in maukka’s test, and for a larger portion of the CCT range. (also in this flashlight the leds run at half current at the middle of the tint ramp, so the duv is not as low as it could be )
thanks for taking the time to share info
I really appreciate the picture you posted, makes it easy to see what is happening, when using a 2000k LED as the bottom CCT of the mix
even in stock form, the IF25 with built in tint mixing that uses a 2700k as the bottom CCT, looks very interesting. But I dont know the duv values
