To Turn on/off or adjust the Lights on a T5, or TT15 Collar using the Garmin Astro 430  follow the below instructions:
  1. Go to main menu
  2. Select Dog List
  3. Select which Dog/Collar you would like to adjust collar light
  4. Select Show Info
  5. This will bring to you to the collar info screen, at this point press the menu button.
  6. Scroll down and select Adjust Collar light and choose which option you would prefer; continuous, blink slow, blink fast, or off.
Please keep in mind that running the collar light will deplete the collar battery faster than normal.