I got my AA/14500 13 group drivers, I also got an orange T3 with an SW35. The stainless screw on clip is way better than the stock clip.
The wires on the 14500 driver are backwards. The red is negative and the black is positive. All three were this way.
Unfortunately I broke one of the drivers tightening the retaining ring in my Jaxman E3. The pliers slipped and broke some stuff off the back of the board. Double sided drivers may be unavoidable, but they are annoying.
I also put one into a Thorfire TG06, It works perfectly in that light as well. It’s also sold as the Alonefire X380. Same host with slightly different reflector.
I see that S12 UV’s product listing now says 2.4A maximum where it used to say 6A before, if I remember correctly. Does it come with a different driver now?
1. It will be available in one week. But the Tc is 5700k instead of 6500k
2. uh ,no plan ,how about M21E? i will add a link of M21E with SFT40 / KW CULPM1.TG in two days
3. It is only suitable for L21B
In fact, the drivers are the same, but this driver was originally designed for SST40 and not for UV LEDs. Because the vf value of uv led is relatively high, the current of the flashlight will be relatively small.
Thanks a lot for your help! Unfortunately the M21E is too big/wide for what I have in mind. The M21B is just perfect other than the lack of onboard USB-C charging.
Maybe others in this thread could chime in if they have an interest in additional USB-C charging lights? I do understand it’s never a simple process to redesign things, but perhaps if there’s a significant community interest and demand, we could see new lights with USB-C charging later down the road?
Simon, I see that Pioneman K80 has been released. It appears to be identical to the thrower you are working on in this post, and I noticed Pioneman has many models that are almost identical to Convoy models. How is Pioneman related to Convoy? Can we expect the Convoy version of Pioneman K80 to be released soon? Has the low current issue with the driver been corrected? Will there be any differences between the Pioneman and Convoy versions of this light?
Like Simon mentioned the Vf of these leds is higher than normal white ones. The 8a driver will only result in higher amperage draw if it also allows a higher Vf. Otherwise as the led heats up it will draw more and more current but not get any brighter. You can have all the amps in the world from a driver but if the vf is low it won’t flow through the led. They go hand in hand.
The forward voltage of most UV LEDs is high enough (and goes up quickly enough with current) that you can’t get nearly 8A into them from a single Li-Ion cell without a boost driver. I don’t think they’d handle 8A anyway, but that’s the main issue. For this reason, to really make a high-powered UV lamp you’d probably want to go two-cell with a buck driver. There was a guy around here somewhere running a C8F (for three LEDs) with 2x18650 (via an extension tube) and a buck driver.
Sure, power is ultimately what matters for brightness, but there can be other benefits to different hardware, such as a more efficient driver. I can’t speak as to what drivers are the most efficient in Simon’s lineup but typically running devices such as these at less than their maximum power output results in better power efficiency. That applies to both the LED and the driver itself.
The bit about forward voltage going up as current is applied is new to me. Is that the case on all LED’s or just UV ones? What is forward voltage? Is that the same as Voltage Floor? VF is voltage floor right?
