In my case I didn’t space it up, I machined my own bezel that’s a few mm shorter than the factory FW1A. I also had to machine the lower part (last ‘fin’) of the reflector off to fit within the head cavity.
Taking a second mcpcb, torching it until the top layers separate (doesn’t always work), then filing and sanding it smooth is an option to create your own spacer. Or buying copper discs from Bopper on Etsy is another (easier) option.
Yes. It’s a totally different driver and mcu. No markings and it’s small with ten pins IIRC, don’t quote me though. I’ll be tearing it down again… I did swap a Convoy Boost HX in. Throw dropped to 85kcd. Might try a 3000k SST20 next to see how it compares to my LEDIL IRIS in my ET G25C2.
Driver OD is 25.4mm. Cavity is 20.4 mm, so it mandates a 2.5mm ground ring. I wish it used the same driver as the X9L, I missed this detail and am kinda annoyed about it.
I can’t remember how bad they were. I know the 5790 when sliced basically down to the phosphor, the angular shift was fixed and the overall tint was very nice for a daylight cct. 4000k never got much attention, likely due to impossibly high duv. I might just need to refresh my memory.
Not really much of a mod, but I have to share. I put a Zircon 803 filter in an SP36 with 4000K LH351Ds and got surprising results. I’ll just let the data speak for itself.
The zircon 803 has a 20% lumen penalty
the benefit is the DUV went negative… congrats on that
for reference, could you also post the same light without the -green filter?
what I like about the SST is the high R9… but I dont care for the green tint
the Lee filter keeps the high R9, and improves the tint… similar to the way slicing the dome of an LH351d does. But the LH351d is not a 90+ R9 CRI LED… and the green tint is as bad as the SST…
so I just ordered an SST light… though I may still mod to 219b, instead of using minus green filters.
R9-R12 are saturated colours and were all not part of CRI because CRI represents how natural colours look, not how saturated. They are important for good lighting though, and with leds the R9 (saturated red) is always the bottleneck so that is the one mentioned.
With the Zircon 803 installed over the LH351Ds, R9 came in at 96 as you can see in the data above. That’s what I found most impressive since the LH351D typically comes in around R9 60-70.
I’ll retake measurements without the filter when I get a chance.
I generally see +10~20 pts of Ra with 803, 5~10 with 804.
This LH351D 4000k with +24pts is indeed significant but don’t expect it to always be that high.