I received this copper TS10 a few days ago and I finally got some time to do that mod that I also do when I receive a TS10.

When shipped, the aux leds (regardless of colour) are always too bright and drain the battery too fast for my liking.

For the orange aux, I added a 510Ω resistor, which dims it down to a comfortable brightness IMO. I don’t have the numbers right now but the battery will also last much longer in high mode. Here are some pictures to show the difference.

High mode: left - no resistor added, right - 510Ω resistor added

Low mode: left - no resistor added, right - 510Ω resistor added

High mode after modding: 510Ω resistors added to both lights, much better