Quicktronic Professional Optimal electronic ballast. The Osram Quicktronic Professional Optimal is an electronic ballast for fluorescent lamps and compact fluorescent lamps. The Quicktronic Optimal is ideal for use with motion detectors. This electronic ballast from Osram boasts very high efficiency due to its switch-off technology. Suitable applications for the Quicktronic Professional Optimal include emergency luminaires, industry, offices, corridors, stock clearances, public buildings, sports halls, piste lighting, and modernization of existing systems. It ensures long lamp life with no impairment from frequent switching on and off. Features include automatic restart after lamp replacement, perfect lamp start for motion detector applications, and very high energy efficiency thanks to switch-off technology. The lamp start is optimized with filament preheating, and it automatically switches off defective lamps and at the end of their service life.