A fixed output 18/38 Watt Electronic Ballast that ensures optimal performance of TL-D fluorescent lamps. Suitable for class 1 outdoor installations and indoor applications such as offices hospitals supermarkets and schools as well as movement detection systems and emergency luminaires makes it a flexible and trusted solution. This is a slim and lightweight gear offering programmed start flicker free ignition and constant light output independent of mains voltage. Additionally it boasts a 50000 hour lifetime and over 60000 on/off switches on one lamp.