This is a Processor-Controlled Ballast with xitec inside, the highest possible energy class CELMA EEI A1 BAT and noise-free precise control via DSI signal, switchDIM or corridorFUNCTION. It features intelligent temperature guard, intelligent voltage guard, optimum filament heating in any dimmer setting, disconnection of filament heating from a dimming level of approximately 90% for maximum energy efficiency, automatically triggered emergency lighting value in DC mode 70%, for emergency lighting systems as per EN 50172. It offers automatic start after replacement of defective lamps, automatic shutdown if the lamp is faulty and backwards compatible.