Lumens Technology VC-B20DU - Manual (Page 9)

English - 8
3.2 Description of LED indicator
3.2.1 Power：
3.2.1.1 No light: Power off
3.2.1.2 Green light: In use
3.2.1.3 Flickering green: Signal from the remote control is received; the
indicator flickers every 0.5 second
3.2.2 Standby：
3.2.2.1 Orange: In standby mode
3.2.2.2 No light: Power on