Guaranteeing high performance over a 50000 hour service life this Philips Performer III Intelligent Ballast offers energy-efficient sustainable operation of High Output TL5 fluorescent lamps rated at 49 Watts. A slim and lightweight yet robust gear it benefits from programmed flicker free start automatic restart and constant light irrespective of mains voltage fluctuations. Additional features include over 60000 on/off switches on one lamp DC emergency operation and overvoltage protection. Typical applications are commercial and retail as well as Class 1 outdoor installations.