Mustek Power Must 400 LCD User Manual page 7

7. Turn On/Off
To turn on the UPS unit, press the power switch lightly. To turn off the
UPS unit, press the power switch again (When Switch ON The LED
lighting.).
8. LCD Display Specification
The LED will always turns on when UPS works, including in off charging
mode and fault mode.
When LCD start to work, it will display all information for 3s
1).When in normal mode, it will display as below.
2).When in AVR mode, it will display as below. And the mark
flicker every 1second.
will