I purchased the UltraFire A9-T60 from DX a year or so ago… It worked great, aside from the oh so common PWM. One day while fiddling with the light, I tightened the head a little bit, and apparently the relfector crushed against the led in a twisting motion, de-domed it, and ripped it from it’s heat sink. RIP A9-T60… or so I thought.
Then I came across BLF.
And after some reading, I realized it probably wasn’t going to be all that hard to fix.
Today I finished the mod. But I must say, it wasn’t without some drama. What a pain to change the driver! I had to use two soldering irons and pray I didn’t melt off all the ICs while heating the thing, and I still don’t think I did it very well.
I used the Fujik glue to attach the led, as there were no screws or anything, and the old way they had done it relied entirely on the reflector pressing against the LED directly to hold it in place?? I do have some Arctic Alumina on order, but it isn’t here yet… so Fujik it was.
Anyway… I probably did it all wrong, but any way you look at it, this thing works great now, and oh, my favorite part… NO visible PWM! Love that Nanjg!
I also just did my first tailcap measurement, on this light I get exactly 2.8 amps on my multimeter. I assume I did it correctly, considering the driver is rated for 2.8 amps! Now I’m gonna check ALL my lights… wow this is quite fun.
Congrats! It's a great feeling when you do your own mod and it works afterward! That light will always be special to you now that it has your touch. Now you'll realize that many lights really aren't that bad since "all they need is a driver & emitter swap"!
Well, I did it again, I dedomed the led and ruined it.
I’ve decided that this flashlight/reflector design is just plain terrible. The only thing preventing the head from screwing down further as you tighten it, is the fact that the reflector itself runs into the LED. The hole in the bottom of the reflector is exactly the same size as the dome of the led itself, but the reflector then presses against the led “square” portion. And if the led isn’t PERFECTLY centered, it easily starts ripping the dome off, because there is just no tolerance.
I have decided on one more try, but this time I am going to drill out the hole in the bottom of the reflector to allow it to surround the led square portion entirely… so it only presses on the led base, and not the emitter itself.
I plan on putting a small plastic cutout in place to prevent reflector/led shorting, which I did the first time, but this time I’m cutting the hole bigger on the plastic as well.
Oh, and do I dare put one of the two U3s I ordered in this light… with all it’s LED chomping?
BTW, the photos on the DX page are correct, save one thing. The hole in the reflector on my light is definitely smaller than the ones in their photos. It just BARELY fits around the dome. Thus the problem I guess.
