Answer
The LED on your EV charger lets you identify the status of your charger at a glance. The different colours that can be found on the charger indicate the following:
 
|   Lights shown  |    Meaning  |  
|   Off  |    Not plugged in, charger available for use  |  
|   Red flashing  |    Charger fault or unavailable  |  
|   Green  |    Charging session has finished  |  
|   Green flashing  |    EV not connected to charger  |  
|   Blue  |    EV is charging  |  
|   Blue flashing  |    Charging suspended (end of transaction or due to schedule)  |  
