My UT02 I received yesterday and it is great.
As it turned out, the flashlight, as in U21 are undocumented modes. To access them: from off hold down the button for 10 seconds. After 10 sec. flashlight blink 2 times for maximum brightness
and turns off. Now we are in a hidden level. In this state, the group Strobe / Breath Flash / SOS added Turbo + (no step down) / Beacon / Constantly glowing blue button.
What’s the last mode I do not understand (solid blue light). With a discharged battery changes color from blue to purple. (Battery indicator?)
Turbo + no step-down: working at room temperature until automatically shuts down due to overheating (when the head temperature reaches 50 ° C).
Also, if the mode is enabled Beacon and we will do two-click a flashlight off. After one click enters in which you can adjust the brightness in Low mode.
It has 21 degrees of brightness and adjusts from minimum to maximum (each click changes the brightness). To store the desired light intensity, a flashlight must be switched off.
Visually Low mode, you can do an equal brightness mode Med1, ie from 15 to 100 lumens.
To exit the hidden group acts the same way: when the light is turned off hold down the button for 10 seconds.
After 10 sec. blink 1 time for maximum brightness and turn off which means dropping the hidden level.
Have fun!
I just received my UT02. What is the “breath flash” suppose to do? It is found after the strobe and all I see is the indicator light changing from red to purple. Does it do something else? Does it have any meaning?
I tried one of mine very briefly and it worked. The only 26650 that I couldn’t get to work was the Klarus battery that comes with the G20 (button top). I also had trouble with a button top protected Keeppower 18650. Everything else worked, which were flat top or semi-flat tops.
I’ll try and generalize things, correct me if I’m wrong.
If I buy a UT02 now, it will probably only be 2.5 amp at the battery and deliver 40% to 60% below specs. So non modders should steer clear.
The modders can add a R050 to R100 and boost the power back up to stock levels (1300lm)
If this resistor mod causes the drivers to break, the lights can then be used as hosts. An xpl hi and a buck driver can be installed and you can get above spec output (1500lm).
Does this sound about right?
If so, I might get me one just for the heck of it.
Yes, you are correct. Tom’s driver picture is from a Manker. I was thinking it was from the weaker Utorch.
After comparing the battery loads I can see that all modes, besides low, have been shifted down. They no doubt changed the firmware to maintain good spacing. Costs them nothing as well.
Turbo is 55% less
High is 47% less
Mid 2 is 39% less
Mid 1 is 20% less
How has your light with the added R050 resistor held up? Still working good?