Ok, so I don’t have any strap wrenches, so I improvised….!
I tied some pieces of paracord to two screw drivers and wrapped two pieces of thin rubber around the body and head of the light. Then I wrapped the paracord in opposite directions several times until tight and used the screwdrivers as leverage. Same principle as using strap wrenches.
No heat required, just brute force :sunglasses:
Great work! :+1: Tomorrow I will do mine! And add some resistor to bump up the current to a bigger but safe level.
Thanks.
What resistor value are you going for? I’ve got some 100 Ohm resistor’s that I’m going to try.
Do you mean R100 labeled resistor? That is 0,1 Ohm. I have a lot R100 so I try it with that.
Yeah I meant R100 not 100 Ohms :person_facepalming:
In case anyone is curious, this light will work with a 3xAAA battery adapter as a power source. Out of curiosity, I tried it with some fresh AAA Eneloops. Turbo mode didn’t work but on High it was getting in the range of 400-500 lumens. The battery indicator was red in this mode due to the voltage. Not too shabby although I’m sure the runtime would not be good on High. I was considering gifting one with a NiMH option to someone who didn’t own lithium batteries.
I’ve had UT02 before and lost it.
Today I received a new one and noticed a big drop in quality:
Where did you get it from?
I think there is exactly 1 shop that sells Utorch lights:
Gearbest.
At least that is where I bought it.
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:
No science here… But when they start selling these for less than 30 bucks… yeah, I kinda can imagine manufacturer needs to spit ’em out faster…
Well , last one i received back in November was superb . I guess i was lucky …
I wish there were more hosts with this reflector diameter , like the Supwildfire 18650 light but in better quality .
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.
+ 1 exactly
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.
Supplement, before modification, color 4258K and 3292 Lux with 5m:
After modification, color 4332K and 4505 Lux with 5m:
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
The resistor has a length of about 2mm
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.
Too big.
Of course, the larger one will also fit, but originally it is 2mm, at least from what I remember.