EMERGENCY LED DRIVER

The invention relates to an emergency LED driver (100) for supplying an LED load (300), comprising a mains connection (101) for receiving a mains voltage; an output port (105) configured to forward a driver supply voltage based on said mains voltage to an external driver (200); an input port (107) configured to receive an LED supply voltage from the external driver (200); an LED connection (113) for connecting the LED load (300) to the emergency LED driver (100); and a load side relay (111). In a non-emergency mode, the load side relay (111) is adapted to electrically connect the LED connection (113) with the input port (107), such that the LED supply voltage received at the input port (107) is forwarded to the connected LED load (300). Upon a failure of the mains voltage, the load side relay (111) is configured to maintain the connection between the LED connection (113) and the input port (107) for a predefined delay time, and, after said delay time has passed, disconnect the input port (107) from the LED connection (113) and switch over the voltage supply of the LED load (300) to a battery (110).