I am yet to finish a C8S build with one of these you are speaking of. Despite weird the UI features two ramping modes, 1st and 2nd. The third is the multiple selectable functions one. I plan on setting it as follows:
Thu, 05/16/2019 - 01:24
So can this driver be reflashed ?
Can these C8+ be fitted with an ON/OFF 100% sw.
Nothing else?.
Or. As I have in a SolarStorm SC02. (18650 cell)
Side sw.
1 and hold. is ramping, Set where you like and it’ll stay there. with a single click… to 60%ish.
Then it’s.
1 click for that setting.
second click is 100%.
The perfect switch for a no nonsense torch.
Get rid of all the other settings, OR don’t have,
IN THAT torch.
Just have fancy switches in multiple others
as we all do.
And I’m just a starter novice at collecting torches.
I haven’t checked this personally, but from the diagram it would appear to be the case.
Just got my driver for my s2+ triple xpl hi. Loved the driver so far
the first 2 mode is ramp programmable.
while the 3rd mode is a special group
but there is no memory in the mode cycle so it always go mode 1 mode 2 mode 3
you can set your first and second mode brightness to your liking by 5 taps when you’re on the mode.
while the 3rd group you can only choose a few options listed on the mode lists
Just tried a brand new, 30Q and got 7.1A at the tail. This could end up being my favourite C8
My C8+ SST40 with ramping driver arrived a little while ago and I’m very pleased with this light. Firmware seemed confusing according to the diagram but in real life it’s a fantastic firmware.
I measured 5.9A on 100% brightness with an LG HG4
It seems the reverse clicky switch supplied is the same used in other Convoy models (S2, S2+ etc). What are people’s opinions/experiences on the lifetime of this switch with 6 amps going across it? I couldn’t find any info on what the switch is rated for.
Omten 1288 switches eggmang, also known as “small Omten”. They're rated for 1.5A or so. I have some in service doing nice at up to 10A. When going really high current with them it is advisable to bypass the spring attached to them, namely if in direct contact. Their housing is made with a soft plastic which readily deforms with heat, this means you have to be pretty quick and careful when soldering over their terminals. Every time I solder one I verify test its resistance with my precision power supply and multimeter, a brand new or undamaged unit features 4mΩ of resistance or very little more.
I really find no good reason to make a switch with such a @#$% plastic. Pity.
:-)
Thanks Barkuti 
From Convoy the driver and tailcap springs came with a bypass wire already soldered which was nice. I tested one of these springs once at 16 amps without the bypass wire and the spring itself got so hot that it could burn skin 
I am considering removing the switch and short circuiting it so that the light turns on/off by tightening/loosening the tail cap. This should give even less resistance 
Is this a common practice among modders?
I also found these today, this will be useful for the driver end as it should have less resistance than the spring and bypass wire; (at 6 - 8 amps these small improvements should make a difference in light output) ;
Wouldn’t the 21700 version be the m21a? There’s a groupbuy thread on it.
Does anybody have any review/opinion on the new(ish) Convoy 4-mode driver with thermal regulation ?
Is it legit thermal regulation, or just big dumb stepdowns when sensor goes over 55C? Does it work well ?
This is what I’ve written out for my customers so it’s easy to understand
Funtastic, I would particularly change the following:
…
For the 1st and 2nd modes, tap switch quickly 5 times to enter ramping mode adjustment. Ramping goes in increasing way and starts from the last set brightness level. If brightness was previously set at maximum ramping will start from the lowest setting. When ramping brightness is set and memorized by tapping or switching power. Ramping cycles a maximum of 3 times.
For the 3rd mode, tap switch quickly 5 times to enter a special config menu. The light will start blinking once per second, tap switch or switch power once the number of blinks matches the desired mode setting in the following list:
…
Suffice to say I like to be super explicit, 100% n00b proof. ;-)
Just came to my mind, I believe this driver could be improved. I find awkward having to double tap for 2nd ramping mode and triple tap for special. This is because this driver only has 3 modes, and I find myself setting the 3rd mode at 1% often. This awkwardness could be alleviated by cycling between 1st and 2nd modes, and double tapping for the 3rd special mode. No need for mode memory because both 1st and 2nd are fully adjustable ramping modes. All in all, less taps and easier to use.
Do you like? :CROWN:
That would be nice for general use. Most of my customers will be using this on a rifle so the current UI is perfect. Harder to switch to the wrong brightness using a pressure switch. If you release the pressure switch and quickly press again it’ll still remain in the 1st level
For the people in New Zealand that purchase from me they don’t usually know what Ramping is. This is the reason I worded the instructions that way. Tried to make it sound as simple as possible. I’ll give additional instructions after they’ve made the purchase.
Thanks for your input
Man false advertising. How can they sell this as ramping modes? I think people understand ramping modes as being in the field with your light and you can increase or decrease the intensity to a very granular level. This is not like that at all. The “ramping mode” is configuration area where you can select the brightness of a second mode (of two regular light modes!) in a configuration area that uses an automatic ramping feature you click at the brightness you want to accompany the second mode. So from this “ramping mode” you get two modes, the first one at 100, the second mode you select from a ramping configuration area, and blinkies. Got to be my worst UI flashlight and I have Haikelites and Jinhengs. I have a Utorch H09 also no mode memory and starts at 100 and you have to cycle through all the blinkies to get back to high. But at least that has like 5 regular light modes giving plenty of flexibility. This one is worse. That being said the light is very bright and has great build quality and heat management. I switched out the reflector for OP which fits my use cases better - better walking light still with great throw. I should have bought the regular mode version, this is not a ramping light by any stretch.
Use paragraphs, that’s painful to read
It’s still classed as ramping, just not the usual. You can’t get a ramping ui with a reverse tail clicky, it has to be an e-switch.
Where did you buy it?
The Convoy store on AliExpress advertise this light with a diagram to show how it functions. Might pay to purchase there or maybe you didn’t read the diagram correctly and it’s all on you buddy.
Purchase another driver and solder it in
You can configure both the first and second mode to whatever lumens you want from 25 up to 1600. Then the 3rd mode you select 100, 1 and blinkies
Look at comment #29 for my clear instructions on how to use this light
thanks Fun I used your commentary to help, very helpful. Of course a lot of instruction is needed for that UI. Never the hallmark of a good product. I did see the diagram but like most on this string it left me scratching my head a bit. If you’re a distributor I can understand not wanting to criticize Convoy I guess but…I don’t know how someone can call this a ramping light.