A Professional Electronic Ballast with safety shutdown at end of life and automatic start after replacement of defective lamps. It features emergency lighting systems as per EN 50172, constant luminous flux irrespective of fluctuations in mains voltage, for luminaires of protection class 1 and protection class 2, for luminaires with F or M and MM as per EN 60598, VDE 0710 and VDE 0711, insulation displacement connection terminal for rapid automatic or manual wiring and temperature protection as per EN 61347-2-3 C5e.