1.driver is in production now
2.uh ,what experiment?do you mena L21A with KW CULPM1.TG? it can reach 1190meters.I am satisfied with this range.
3…
Okey, Nice,
When are you going to list it on your store ?
Hey Simon, or anyone who can answer - does the 5A SST-40 driver have LVP as well?
I’m assuming it does but there’s no mention of it on the product page.
After around two weeks.

Hey Simon, or anyone who can answer - does the 5A SST-40 driver have LVP as well?
I’m assuming it does but there’s no mention of it on the product page.
Yes.This is a standard function. I ignored it when I wrote the description. This is my mistake.

contactcr:
I meant … —- … Manual SOS, duh
Ahahahahahahahaha
I better stick to the beers, outgunned totally.
BTW have you seen post about new gen S2+ that have changed threads?
Cannot find it now but guys are complaining that 18350 tubes cannot be installed on other S2+ tailes and heads…
The grey ones really suck, can’t recognize which one is new or old batch.
The color ones are still old batch I think,
About a month ago I got a couple remote switches for S2. They wouldn’t thread on any of my existing S2 Simon said there was a bad batch with wrong threads and refunded. Then I ordered three sst20 x6 biscotti. I asked for short tubes instead of large tubes as I have a pile of extra large tubes, but short 18350 tubes (ideally uniquely colored so I can keep track of led/drivers) and a magnnet are what I usually use on these. He didn’t send the short tubes like he has in the past. So I try to put …

id30209:
contactcr:
I meant … —- … Manual SOS, duh
Ahahahahahahahaha
I better stick to the beers, outgunned totally.
BTW have you seen post about new gen S2+ that have changed threads?
Cannot find it now but guys are complaining that 18350 tubes cannot be installed on other S2+ tailes and heads…
The grey ones really suck, can’t recognize which one is new or old batch.
The color ones are still old batch I think,
The old thread is a trapezoidal thread, the new thread is a rectangular thread,
New driver spring of S21A is ridiculous high.
No chance to use flashlight with 21700.
Even flat top18650 is 1mm over tube.
Simon, there is a growing selection of drivers and LEDs in your store. Could you divide the “LED, Driver” subcategory into two separate ones? “LED” and “Drivers” separately. It’s getting harder and harder to find anything.

New driver spring of S21A is ridiculous high. No chance to use flashlight with 21700. Even flat top18650 is 1mm over tube.
Spring is fine, bypassed. And damping is perfect in case of drop there won’t be mode change. I have Molicel P42A and it works great

Tangra:
New driver spring of S21A is ridiculous high. No chance to use flashlight with 21700. Even flat top18650 is 1mm over tube.
Spring is fine, bypassed. And damping is perfect in case of drop there won’t be mode change. I have Molicel P42A and it works great
New one doesn’t have bypass.
For me S12 has perfect size battery tube for 21700. S21A is short.
If it’s not bypassed it means Simon built it with phosphorous bronze spring, not regular bypassed IMO
Simon, there is a growing selection of drivers and LEDs in your store. Could you divide the “LED, Driver” subcategory into two separate ones? “LED” and “Drivers” separately. It’s getting harder and harder to find anything.
Okay, I have re-completed the grouping,
However, the page display is somewhat delayed,

New driver spring of S21A is ridiculous high. No chance to use flashlight with 21700. Even flat top18650 is 1mm over tube.
probably the latest type.
Below I pictured some revisions of S2+ SST40 4-mode driver.
- top pic shows the earlier SST40 4-mode driver (softer spring with spring-bypass wire pre-installed) ; driver spring is "triangle" shape. ; tailcap current measures (to verify again... something like 4.5+ Amps I think)
- middle pic shows a fairly recent SST40 4-mode driver (a bit stiffer spring, not factory bypassed) ; driver spring is "cylindrical" shape ; tailcap current measures around 4.45 Amps
- bottom pic shows a new SST40 4-mode driver (even stiffer spring, not factory bypassed), driver spring is sort of "trapezoid" shape, tailcap current measures around 4.8 Amps
bottom pic also shows the new S2+ body screw thread -- it will not "lego" with the 2 top S2+ body tubes. (the earlier shade of grey is also slightly diffferent (earlier S2+ gray is like a shade of bluish-gray, compared to slightly darker grey in newer S2+)

Simon Mao:I found the company that produces this LED on Alibaba, and there is a very interesting thing here. I was an intern at this company in 2007.
Wow. Can we think about this LED and slightly modded XHP35 driver to give 3A instead of 2A?
Also if this driver could be updated to 12group or tuned ramping that wod be even better.
How much interest would Simon need to get this High CRI emitter in a M21C, M26C and M21C-U with Ramping?

Tangra:
New driver spring of S21A is ridiculous high. No chance to use flashlight with 21700. Even flat top18650 is 1mm over tube.
probably the latest type.
Below I pictured some revisions of S2+ SST40 4-mode driver.
top pic shows the earlier SST40 4-mode driver (softer spring with spring-bypass wire pre-installed) ; driver spring is “triangle” shape. ; tailcap current measures (to verify again… something like 4.5+ Amps I think)
middle pic shows a fairly recent SST40 4-mode driver (a bit stiffer spring, not factory bypassed) ; driver spring is “cylindrical” shape ; tailcap current measures around 4.45 Amps
bottom pic shows a new SST40 4-mode driver (even stiffer spring, not factory bypassed), driver spring is sort of “trapezoid” shape, tailcap current measures around 4.8 Amps
bottom pic also shows the new S2+ body screw thread — it will not “lego” with the 2 top S2+ body tubes. (the earlier shade of grey is also slightly diffferent (earlier S2+ gray is like a shade of bluish-gray, compared to slightly darker grey in newer S2+)
Seem that spring on bottom pic have larger basis and driver bigger positive area than spring on middle S2+.
Their heigh is same?
Battery is standard 21700 flat top Samsung 40T.
This is not normal. I think, battery should be equal with tube.
Now S21A is perfect for 18650 battery.

id30209:
Simon Mao:I found the company that produces this LED on Alibaba, and there is a very interesting thing here. I was an intern at this company in 2007.
Wow. Can we think about this LED and slightly modded XHP35 driver to give 3A instead of 2A?
Also if this driver could be updated to 12group or tuned ramping that wod be even better.
How much interest would Simon need to get this High CRI emitter in a M21C, M26C and M21C-U with Ramping?
I should be able to directly purchase this model of LED from this company

I see a new M21C in Simon’s store
Are there any measurements available?
2meters 44000lux
839meters range