Hi @Simon_Mao
Is it possible to buy the T5 with a SFT40 3000k?
Is the TIR optic from the T5 compatible with 5050 sized emitters?
I assume the TIR optic from the T5 is the same as the 17mm H1 optic listed in your store. The description says it is for 5050 emitters but does it work well with 3535 emitters? Or is it too big to stay centred on the emitter?
Do you sell 17mm 3535 TIR optics?
Yes. A reflector suitable for the xhp50.3 HI, xhp35 HI would work, but the sst70 reflector would require a different centering gasket and focusing.
For those who are interested, there is a update (or no update, thats depending on you):
To this day I got no replacement drivers with proper MCU and also no refund. Conversation was not successful at all. I think, I will open a Aliexpress dispute about this since I want at least my money back. The pictures in the item description of this driver I ordered are still wrong to this date. I ordered 5 pcs of this driver, to have at least a few of them to get something done, which has the proper Attiny MCU on it.
I am very disappointed about this and the wasted money and now I have to check where I get drivers from another source. If someone knows a source of 105c drivers or Attiny based ones (would pay some euros per piece for them), I would be very happy. I also found two older 105c drivers in my ‘waste box’ which I can repair.
Using the 3x21C host and 3x21B driver, it should be possible, though they would not be anywhere near as bright as SFT40 in the same host with the FET driver.
kaidomain.com - 105c drivers
Lumencraft.com - (formally Adventure Sports Flashlights)105c drivers
mtn-electronics 7315 driver, qlite
I vaguely remember Emisar carrying 105c drivers but it’s no longer listed. illumn, mtnelectronic also no longer has them.
I think Simon will make things right. try his email from his new site: admin@convoylight.com
17mm 5050 TIR lens is suitable for 3535 LED ,too.
T5 with SFT40 , It sounds like a strange combination.
This is difficult, and I don’t have a good plan at present.
At present, the position where the drive circuit is installed has not been changed.
The position of the magnet has been reserved at the tail of H4.
I will customize some magnets in the future.
About Xhp50.3 HD led.I am purchasing them.
I will upload these products to my website tomorrow.
it needs a boost driver .
Okay, I’ll add these links tomorrow.
hi , I’m sorry, but some of the pictures have not been updated.
currently ,only 71354 4groups and 71358 4groups have attiny 13A MCU on them
I know. I was fooled by these pics. The drivers I got are useless due to random Chinese MCU. If these random MCUs were shown in the pics I would never had ordered these drivers.
I am tired to repeat myself like I did on Aliexpress chat more than one time, even with a link to exact the BLF post which explains everything. I just want the drivers like shown on the pics or my money back. I will now order 105c from Kaidomain. (Just one at first to check if these are right, I was warned by this experience some weeks before.)
And I don’t get it why still the wrong (very misleading pics) are still shown in the Aliexpress store.
Tbh I am a little bit angry right know.
@flightless22 thanks for your help, I will test the 105c by KD 
The 3x21a uses a 40mm driver
3x21b uses 46.6mm driver
Do you know which diameter the 3x21c uses?
maybe consider putting 5050 emitters with various 17mm drivers in the T2/T3/T5 hosts? They can handle the heat well.
You’re right, I didn’t notice it was slightly larger. That is odd, but nothing too hard to fix with a dremel.
The 3x21C is the same as the 3x21D, which would be 40mm AFAIK.
It might sound like a strange combination T5 with SFT40 3000k but is it possible to buy it?
SFT-40 in a small host like T5 will be extremely underpowered. But for a given amount of power it is still more efficient than other smaller emitters so it’s worth a try. However I doubt Convoy has a suitable MCPCB with 5050 foot-print for T2/T3/T5 ATM.
I’m pretty sure there’s a T2/T3/T5 MCPCB in Simon’s Aliexpress store for 5050 emitters, he added it recently. I just thought he would have added the option in the T2/T3/T5 to choose SFT40. Also @Simon_Mao can you add the option to buy with 14500 battery on the new colours of T5?
