@Simon
Is ramping speed fixed in M3-C?
US $38.11 | Convoy M3-C with XHP70.2
https://a.aliexpress.com/_mMa9kj7
Possible to buy S21A with HighCRI: LH351D or SST20?
thank yyou
I dropped one of Simon’s CULPM1.TG into an M21C and the tint is quite nice. I measured CCT ~5000K. I like it a lot more than the cold white Osrams.
Finally, for me this is really great news…or that before I order, I assumed them to be 6500k, I was focus on distance and lumen and the 2*2mm die.
Kinda feel like I’m walking into a movie midway through…
What’s the pull of this and the CSI.NY LEDs? Power? Throw? CRI? Whut?
It’s a 3V LED so it will work, though it won’t drive the LED to it’s max potential. I’m using Simon’s 8A buck driver.
The Osram’s have very small emitting areas so have more throw than other LEDs. The CULPM1.TG is a 4040 package so can be driven to higher currents than the 3030 variants.
Unfortunately I don’t have a spectrometer to measure CRI. It’s ~4900K at the lowest current setting and ~5250K at 8A. I’m getting ~1600 lumens OTF with the M21C host. I got decent focus just dropping it right in with one of the 4040 centering rings. I did have to put a shim under the bezel as the reflector moved around slightly if I shook the light too hard due to the thinner centering ring.
Can’t get any beamshots tonight; it’s pouring rain outside.
Aha, tnx!
So these are the Next Best Thing vs the white/black flats, I imagine.
I haven’t heard a peep, though, about secondary issues like tintshift, fried-egg beams, nasty coronas around the hotspot, etc.
Must be killer behind an aspheric, though. Teenytiny dot of light packed full o’ lumens.
I haven’t gotten a reply from the manufacturer, I will urge him as soon as possible,
I don’t have a suitable driver.
Why not use 5A 17mm 12 group driver with ring adapter.
[quote=Lightbringer]
They are the white flats, as Osram naming scheme isn’t easy to remember, nicknames like “white flats” emerged.
If you see a dark hole in the center of the beam only when it’s close to a wall, that’s actually a sign of a well-focused emitter. Totally normal for a thrower.
Yeh, I keep saying that, and no one believes me. 
Everything that hits the reflector gets tossed forward in parallel rays. Anything that comes out the front of the LED ends up as spill. The “hole” in the reflector where the LED sits, and inner part of the reflector where no light from the LED hits (coverage is never 180° but maybe 160° at best) is also part of that hole.
Imagine the hole being really big, and you don’t have a cup for a reflector, but a curved ring. That’s what’s projected at least until the hotspot diverges enough to fill it in.
Pretty much all my good throwers have at least a slightly darker spot in the middle.
Is this 90CRI GT LED available in Simon’s store?
Do you have a link?
thanks. How about using the orange/blue lighted caps in the S21A? Any concern of drawing too much current?
Anyone know what to do with the Convoy Z1 squeaking when adjusting focus?.
Simon said it was because of the wrong orings so I installed his replacements……same issue after about 3 minutes of focusing in and out. If it was for personal use I wouldn’t care, but I have to sell these.
lubed threads = no difference, lubed oring = problem solved, but it’ll dry and cause an issue down the line and also a dust problem. Installed thin S2+ orings and it’s perfectly fine but won’t seal properly.
This is a deal breaking issue for stocking these in the future. Some people report not having this issue and others who have reported it. I’ve had it on every single one, either straight away or after adjusting really fast for 3-5 minutes, the noise starts.
Really missing the push/pull setup after this mess.
Definitely cooler than SST40 5000K
Is this just camera goofiness or is the CULPM1.TG noticeably warmer in person too?
It is visual more warmer.