Master Switch: controls General mode and output selection.
Auxiliary Switch: controls Strobe and SOS mode.

ON/OFF
With the light off, press and hold the master switch for 0.5 seconds to enter into General mode, press and hold the auxiliary switch for 0.5 seconds to enter into Strobe mode.
With the light on, press and hold the master or the auxiliary switch for 0.5 seconds to turn off the light.

Mode Switching
With the light on,
Single-click the master switch to enter into General mode,
Single-click the auxiliary switch to enter into Strobe mode.

Output Selection
In General mode, single-click the master switch to cycle through Eco→Low→Mid→High→Turbo;

Strobe and SOS
Single-click the auxiliary switch to enter into Strobe mode,
Another click the auxiliary switch to cycle through Strobe→SOS.

Lock-out Function
Lock: Simultaneously press the two switches for 3 seconds (when the light is unlocked), the light will blink twice at Low and then go out, the light is locked.
Unlock: Simultaneously press the two switches for 3 seconds (when the light is locked), the light will be unlocked and power on the last-used output level.

Note: In locked status, the light only responds unlocking operation, press on any switch, the light will blink twice at Low to remind the light is under locked status.

Intelligent Memory Circuit
The flashlight memorizes the last brightness level used in the General mode, the next time it is turned on, it will recall that previously used brightness level.

Over-heat Protection
The flashlight will accumulate a lot of heat when it is working at Turbo and High brightness level. When it works at Turbo for 5 minutes, the flashlight will automatically downshift to High output to prevent the light from overheating. If the Turbo output is needed, please reset it again. But the flashlight could be damaged or the normal service life could be shortened because of continuous use like this.