To switch between different light outputs, either press switch fully on and off within 3 seconds or half press repeatedly to cycle between modes. After 3 seconds of on or off, the product will return to the start of the cycle when next switched on.
The different light functions are controlled by ILC = Intelligent Light Control
Max  = Maximum output allowed by battery and LED
High  = Sustainable high light output
Medium  = Medium light output, medium lifetime
Low  = Long term low light output
Strobe  = Flashing strobe light at 10 Hz