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[Simon_Mao]

@Mocarny

Hi Simon, love the design of M3 and I’d love to have the tail switch version. Any plans for that?

sorry ,no plan ,yet

[Simon_Mao]

@1stein

Simon, I plan to put MT-G2 into M3. Did you happen to know what’s the reflector opening hole size? Looks quite big in pictures…

bottom diameter 11.4mm

[1stein]

@Simon Mao

@1stein

Simon, I plan to put MT-G2 into M3. Did you happen to know what’s the reflector opening hole size? Looks quite big in pictures…

bottom diameter 11.4mm

Thank you very much. So some finishing will be required…

[Caleb]

Simon, are any M3 parts interchangeable with your C8?

[Soldier]

@contactcr

@Soldier

@contactcr

The only ones I have had problems with got too hot during soldering. I have some which have taken 20+ amps for short periods and still remain very clicky and responsive.

HOw do you measure the current?

At the tailcap ???With a Clamp Meter?

UT210E clamp meter and a thick solid piece of copper wire.

Ok,then you measure the current without the clicky ………

For a real measurement you have to extend the led wires .

Like on this image.

With an Fet Driver you will measure a much lower current with the little Omten Switch.

[contactcr]

@Soldier

@contactcr

UT210E clamp meter and a thick solid piece of copper wire.

Ok,then you measure the current without the clicky ………

For a real measurement you have to extend the led wires .

Like on this image.

https://abload.de/img/dsc01897hxktf.jpg

With an Fet Driver you will measure a much lower current with the little Omten Switch.

I actually measured 28.x amps and only said 20 for this reason.

[contactcr]

@Eleziel

@contactcr

I think it’s quite a bit more than 20 amps when you short a 30Q

Hmm has anyone done proper testing on 1288’s? would be cool to see when they actually die.

Djozz tested up to 16A for a few hours and gave up because there was no sign of switch giving up

[Simon_Mao]

@Caleb

Simon, are any M3 parts interchangeable with your C8?

The accessories between them are not universal

[zeremefico]

M3 driver size?

[SKV89]

Simon when will the copper pills for the S21A be available? I would like to order some with the copper pill. Thanks

[Simon_Mao]

@zeremefico

M3 driver size?

26mm

[Nicolicous]

got your drivers today simon.

I put on Convoy S8+ with flat white LED and the hot spot perfectly focus on first go without any adjustment. Must be my lucky day.

[Vedro]

Simon, tell me please.

Are these drivers absolutely (technical) identical (of corse, except diameter):
17 mm https://www.aliexpress.com/store/product/7135x3-7135x4-7135x6-7135x8-with-new-firmware/330416_32734523412.html
and
20mm https://www.aliexpress.com/store/product/Diameter-20mm-4Groups-AMC7135-8-Flashlight-circuit-board-Anti-reverse-output-current-3040mA/330416_32266600994.html
???

I plan to buy your new 21700 host and plan to use 20 mm driver in it.
The matter is: I use custom firmware for my 17mm red drivers. If the drivers are technically identical, then custom firmware will work on a 20 mm driver, do you understand?

For Admin: these are NOT referral links, these are direct links to the topic starter store!

[BlueSwordM]

Same driver, except for firmware.

They use the same ATiny 13A controller IC.

[Diomedes]

If you want to use a 17mm driver in the new M21A host which takes a 20mm driver, you can buy some brass adapters from Kaidomain (also available on AliEpxress) for this. Just search for “17mm To 20mm adapter”. I’m using these adapters sucessfully in the new M21A host. Simon is also apparently going to sell these adapter rings soon, but they’re not available from him yet.

[rizky_p]

What driver in M3 is it boost driver never heard 3v XHP70.2 before. Thanks

[Simon_Mao]

@Vedro

Simon, tell me please.

Are these drivers absolutely (technical) identical (of corse, except diameter):
17 mm Page Not Found - Aliexpress.com
and
20mm Page Not Found - Aliexpress.com
???

I plan to buy your new 21700 host and plan to use 20 mm driver in it.
The matter is: I use custom firmware for my 17mm red drivers. If the drivers are technically identical, then custom firmware will work on a 20 mm driver, do you understand?

For Admin: these are NOT referral links, these are direct links to the topic starter store!

the same except the diameter and the firmware ,friend

[KevinZA1988]

Simon, are you going to make a 21700 version of the S3? Integrated shelf?

[Vedro]

@Simon Mao

the same except the diameter and the firmware ,friend

Thank you! :+1:

[djozz]

@Eleziel

@contactcr

I think it’s quite a bit more than 20 amps when you short a 30Q

Hmm has anyone done proper testing on 1288’s? would be cool to see when they actually die.

yes, 5 years ago:

switchtesting , (june13th2015:additional test by MRsDNF in post#44)

[image] I got these two 100W 0.5Ohm resistors in the mail yesterday, so I could make me a test-load to do current tests now, I wanted that for a while. I screwed them down on a MCU-heatsink with fan, and wired them parallel, now it is a maximum of 200W test-load, it should handle currents up to 28A. [image] This thread about a new 6A switch that I found on ebay made me want to test a few switches, I asked other BLF-members how a switch test should look like (the concensus was that long per…

switch tests: KAN-28, update: stock switch UF-1405 in post#12

I ordered these from Fasttech: [image] ..and I got these: [image] A quick search, this 'KAN-28' appears to be around, Richard (Mtn Electronics) sells it too for about as cheap. The leads are brass, not much voltage drop over the leads (5mV over the exposed length of one lead at 16A): [image] Testing: [image] At 6A, the voltage drop over the switch was between 25mV and 35mV At 10A, the voltage drop over the switch was between 40mV and 50mV At 16A, the voltage drop over the switch wa…