Specifications - Wurkkos FC13 User Manual

Specifications

Emitter: High-quality and Powerful LED
Operating voltage: 3.0V – 4.2V
Battery options: 1x 18650
Dimension: 113.7mm (length) x29mm (head diameter)
Weight: 77 grams (without battery)
Flashlight body: Aerospace grade 6061 grade aluminum alloy
Water resistance i.a.w. IP68
Automatic Stepdown: Turbo mode steps down to High mode automatically to prevent overheating.
Electronic reverse polarity protection from improper battery installation
Advanced Temperature Regulation (ATR) technology
(The product uses copyrighted code released under the GNU Public License v3 (GPLv3).
To know about the exact source code used in the product, please go to
https://tiny.cc/TKAnduril）
Operation Instructions
Quick Start
Basic usage is simple:
Click to turn the light on or another click to turn it off.
- Hold the button to change brightness.
- Release and hold again to change brightness the other way.
-When on 3 clicks to toggle between stepless dimming and stepped modes
Aux button light(work in Advanced UI):
Just like with single-color aux in Anduril, RGB aux has 4 "modes" that are controlled by 7C:
Off-Low-High-Blinking
But RGB aux adds color options that are controlled by 7H:
Red-->Yellow (red+green)-->Green-->Cyan (green+blue)-->Blue-->Purple (red+blue)-->White
(red+green+blue)-->Disco (random colors)-->Rainbow (changes colors in order)-->Voltage (changes color based
on LED voltage)
When in the Voltage color option, the colors are:
> 4.4V: white-ish (red+blue+green)
4.1-4.4V: purple (blue+red)
3.9-4.1V: blue
3.7-3.9V: cyan (green+blue)
3.5-3.7V: green
3.3-3.5V: yellow (red+green)
2.9-3.3V: red
< 2.9V: off
By default, Anduril 2 is set up to use:
While off: low brightness, voltage color mode
While locked out: blinking, disco mode
I think you are in Voltage mode, which is the default. So the color is changing based on the battery voltage.
When the flashlight is used, it causes the battery's voltages to drop a little bit. The voltage goes back up