1. Manually switchable 10-positions Dot Brightness with 2 way pressure switch.
2. Turning on or off the power can be operated on the pressure switches marked with Λ or ∨.
3. Press either switch for 2 seconds to turn off the power.
4. To increase the brightness, press Λbutton, to fade down it press the ∨button.
5. The power can be shut off automatically after 3-hour inactivity.
6. When to operate the sight, its red dot turns on at the same level as that before its power turned off.