Processor-Controlled Electronic Ballast with xitec II inside and highest possible energy class CELMA EEI A1 BAT. Ballast offers noise-free precise control via DALI or DSI signal, switchDIM or corridorFUNCTION as well as Multilamp management. Intelligent temperature guard, intelligent voltage guard, optimum filament heating in any dimmer setting. It features disconnection of filament heating from a dimming level of approximately 90% for maximum energy efficiency corridorFUNCTION with ambient light control, automatically triggered emergency lighting value in DC mode 15%, for emergency lighting systems as per EN 50172, automatic start after replacement of defective lamps and automatic shutdown if the lamp is faulty.