Aw man, you’ve taken away my happiness but thanks , I was planning a build with that driver. Cancelled, unless it’s just a capacitor mod or the like.
Yeah, that’s the only disappointment about the driver but on the positive side it puts outs good power. I got around 5 amp reading from the light.
Gonna have to think about that or find a fix if there is one.
NMM reminds me of some of the very first cheap lights I bought (shudder)
Yeah, same here. I still have 2 more coming my way which I ordered before knowing about the NMM. I’m hoping that someone comes up with a fix for it as I don’t have the expertise to do so.
Some NMM drivers in the past could be fixed to no memory with a pencil stripe over a capacitor. Who knows.
I change the xm-l2 in ec4 to xhp50.2
But, too bad, it doesnt work properly, sometime it can go high mode, or doesnt work, or very low output
With 2 cell and constant current drivr, i hope it works, but disappointed, now i have to order xm-l2 led
XHP50.2 is a 6/12V LED
XM-L2 is a 3V LED
the old XML2 should be fine
I know, but i measure the Voltage when open circuit, it’s almost same as Vcc(about 7. Volt), so i guess it will adjust the volt so that current is stable
I change the xm-l2 in ec4 to xhp50.2
But, too bad, it doesnt work properly, sometime it can go high mode, or doesnt work, or very low outputWith 2 cell and constant current drivr, i hope it works, but disappointed, now i have to order xm-l2 led
I have EC4 with XHP70 and stock driver and it works well. You need to use thermal resistor.
I lost the thermal res when reflow the led(damm, that little thing), i dont know the value, so i just solder 10k resistor
So, i reflow the xpl-hi led, change mcpcb to cooper, now it works, so i guess my driver wont work with xhp50 led
I’m sad:(
This is bad news, I want to swap to XHP50.2 too in my EC4…
I dont know will it work, because kiriba said that he modded ec4 with xhp70, and it works, so… i dont know
Maybe difference in Vf
This is maybe my last pic of xhp50.2, before i lost it in my drawer
God, i always love seeing led under UV light
Yes, I got the driver from Kaidomain. Whenever you turn on the light, it’ll go to the next mode that you last turned off the light on. The driver has ll-l-m-h and then double click for strobe. So if you turned off the light on medium, it’ll start on high when you turn the light back on.
I have the same driver in a Eagle Eye X7 with a XHP50.2, even if it’s on time memory it will start on the same mode if the flashlight is turned on for more than 3 seconds, less than that and it will go to the next mode. Does your driver also have a pre-flash in the low mode ?
Yes, there is a pre-flash on the lowest mode.
Quick Mod on 1508 75mm:
- XHP35HI on16mm copper from Kaidomain
- 1 Mode Buck Driver from DX: http://www.dx.com/de/p/18v-5w-cree-circuit-board-for-flashlights-16-8mm-5-5mm-26110#.WO56sqKJI-U
- Modded with R100 instead of R200 for 2,5A, like wrote on Aqualab: LED Driver List - LED Drivers and Regulator Boards (database driven) (search for “TR-0021b”)
- At tailcap 2,33A
- with 4x 18350er Batteries
- Driver heat with https://www.fasttech.com/products/1…al-conduction-silicone-rubber-cubes-1105cm10- to the pill
At 5m I have measured 372kcd, thats aproximately 1220m distance.
Propably next steps:
- soldering MCPCB to the pill
- using thicker wires and bridging springs.
See although: Ultimate aspherical flashlight set / Uniquefire 1508 - #87 by Wieselflinkpro
I repaired a S2 triple’s LEDs (purchased a prepopulated noctigon and one LED was dim from the getgo).
Replaced them with Nichia 219b-V1 5000k emitters and a BLF a6 driver. Pulling close to 12 amps from an LG D1 at 4.33V. Beautiful smooth beam.
Voltage Meters
I added a removable voltage meter to the magnetic TP4056 Charger unit and potted the components side
.
Also some refinements to the charger tin
.
And a voltage meter on one of my battery drill packs
.
Just finished a Night Piercer mod of an Astrolux SC for a customer. LED swap, driver reprogram, bypassed springs, refocused reflector, upgraded wires, potted driver. Had to re-machine the LED shelf since it was bulged pretty badly in the middle but she’s nice and flat now. Came out at a cool 83Kcd (~575m).