At present, the manufacturer has replied. This is because the mode group is not saved at the moment of power failure. At present, the manufacturer has fixed this bug by modifying the program.
If some users need me to mail a new driver after one month, please leave me a message,
Odd, the S21A has been on the market for a while, but I feel like I’ve only started reading about these memory bugs in the past couple months.
Was the manufacturing process changed at some point recently? I’ve got one in the mail, so fingers crossed that it doesn’t exhibit similar bugs…
Are you sure it’s power failure? The mode memory on mine has never been affected by opening the flashlight. It will just randomly reset at some point in the future. There does not seem to be any particular cause.
same for me, once per like month it will simply change mode group for 1st one
I dont know what cause it, as it happen very rarely
I have one of the new 8A buck drivers with 12 mode group firmware and I’ve had this happen once as well.
anyone can chip in whether there are any safety concerns when the bypass cable snaps?
Probably not. But, the light can be run at a lower level. I have remade the bypass with a larger wire due to this happening on some of my S21As, too. At first, I was surprised it happened because the stock wire looked ok.
I dont think so, you will just lose few lumens on higher levels
Is the SST40 of this review the 5000K version ? It seems like by the picture
Just got mine in, does anyone know of a clip that fits around the light and is captured by the tailcap?
In this style…
It's the 6500K version
The Convoy S21A can be had with either the “4 modes” driver or the “12 groups” driver.
Link:
https://www.aliexpress.com/item/33026858558.html?pdp_ext_f={"sku_id":"10000012685260820","ship_from":""}&gps-id=pcStoreJustForYou&scm=1007.23125.137358.0&scm_id=1007.23125.137358.0&scm-url=1007.23125.137358.0&pvid=fbf2855a-361a-42fb-9ce1-6b7f0d8ee00c&spm=a2g0o.store_pc_home.smartJustForYou_650637087.0
In the “12 groups” driver instruction it is mentioned: “BTW, do not leave the light in config mode for long period of time, because it will wear out the driver’s memory faster.”
Does that mean that Convoy lights with the “4 modes” driver will last longer than those with “12 groups” driver ?
Thank you in advance.
Probably best asking in a thread that Convoy owner Simon posts in regularly about the driver ‘wearing out’.
1 Thank
yes, IF you plan on leaving the light in config mode… !
If you use it like a light and reconfigure it only occasionally I cant see you being able to see any meaningful difference in driver life
Cheers everyone!
Does anyone know what kind of thread is used in the tailcap to hold the switch in place? For a modification project I need to 3D print a part with the same thread. I’m from Europe so I’m not familiar with threads outside of metric threads. My closest guess would be ANSI 3/4-28 UN right now? Unfortunately, a test printed ANSI 3/4-28 UN created with Fusion 360 did not fit.
Thank you, Jan
No ideas?
I almost responded, but the info in my mind was for a emisar light.
I’ll be checking the s21 in a minute here at work
Edit: ok… .743 od on the brass ring. Kind close to 19mm if you ask me.
Also with my old eyes, it appears to be about .75mm pitch
And it’s left handed as well.
Start with that, 19mm x .75 pitch, LH.
I don’t know what’s common for metric, as .7mm pitch is also close
To my knowledge M19 isn’t a common thread size - so Fusion360 doesn’t have a M19 thread option out of the box - and that’s why I’ve been looking for 3/4” non metric threads instead. But you are right, if (!) it’s a metric thread, it would be M19 x 0,75.
@ Freeriderz:
I don’t have such with me (S21A) but from justanotherguy if it has .75mm pitch (eyeballing it), I be looking at 3/4” x 32 TPI Left Hand. That’s closer to .75mm than 28 TPI.
BTW, all 24 or 32 TPI are standard on inch stock bar. But a better way to check pitch is against a known screw. Doesn’t matter the size, just if the threads mesh*. OD of threaded part is always some .005 to .008” less than nominal (sometimes much more for sloppy fit).
EDIT: * Oops – Left-hand thread can’t mesh stock screws (right hand). But check if crests line up.
Thank you Sidney! I’m going to give “3/4” × 32 TPI” a shot! Might have to buy a new and smaller nozzle though. I’ll keep you posted!