This is normal; it does not indicate a problem unless the LEDs do not indicate a healthy state after all boot processes and diagnostic tests are complete. The port side of the switch has the following LEDs. A single tricolor LED for each SFP-DD indicates the port status. Use the show interfaces privileged EXEC command to see if the port is error-disabled, disabled, or shutdown. A powered device connected to PoE port does not receive power: Use the Mode button to show the PoE. System activity and status can be determined through the activity of the LEDs on the switch. Flashing lights may be slow, fast, or flickering. There are 48 LEDs (green/amber) for the first 48 SFP+ ports and 8 tri-color LEDs (green/amber/light-blue) for the last 8 SFP+ ports 48, 50, 52, 54, 56, 60, and 62.
[pdf] That indicator light is to show if there is live power on the circuit going from the grid to the inverter or to the loads. These lights are widely used in: Electrical. Pilot lights, also called indicator lights, are small panel-mounted lights specifically designed to indicate the operating status of multiple electric and electronic devices, machines, and systems. These versatile switches provide a visual indication of whether the equipment is active, in standby. The role of the indicator light: 1. Just be sure to label accordingly. Generally, most of the electrical panels use pilot lamps to indicate ON and OFF.
[pdf] 
