Didn’t know that Gearbest was the exclusive seller, thanks!
Early on when they first came out I had 2 that where really dirty, the last time I purchased 4 of them was 2 Christmas’s ago and they were perfect. I was about to get 2 more?
Meh back to the quality lottery again… :person_facepalming:
Just got a NW one for $29. Great light. I appreciate the extra capacity of 26650, and with such a large head there’s really no reason not to use one. I would’ve paid extra $10 or so for (slightly throwier) emisar D1s, but it’s use of single 18650 in this form factor seems ridiculous.
For some time I wanted to improve my UT02 but … I could not take out the driver. I could not sleep tonight so I took one more approach and succeeded. As it turned out, the tile is slightly different from those in the first versions. You can see big sloppiness. In addition, I received a “corporate modification” in the form of an additional capacitor. Hmm interesting. I added the resistor R100, corrected the cables, cleaned and reassembled. It works and it’s good. The current measurement for 4.15V in turbo mode is 3.93A and in High mode 1.32A. Before modification, I had 2.9A and 0.9A. As I later make a calibrator measurement, I will complete the entry.
Can you or someone provide a like to where you can get the resistor on fasttech? I can’t find it anywhere. Other vendors included. The main problem is that I don’t know what size resistor. Is it a 2512, 1812, 0805, 0603? Thanks
Since you are in US, I would buy on ebay. I think you need the 1206/3216 size 1/4 watt. This is a common size for sense resistors. If you want R100, look here.
I don’t read whole topic but maybe some have the same problem, my sample of UT 02 is only getting barely 800 lumens, and tail current is 2.6A. Ok, I’m not expecting 1300 lumens but 1000 will be expected any situation similar to mine ??