Lenovo ThinkPad Edge E145 - Manual (Page 23)

The meaning of the indicator is as follows:
• Red: The computer is on (in normal mode).
• Fast blinking red: The computer is entering sleep or hibernation mode.
• Slow blinking red: The computer is in sleep mode.
• Off: The computer is off or in hibernation mode.
Power status indicator
Your computer has an indicator that shows the status of ac power.
Chapter 1 . Product overview 7