Find the required operating devices such as ballasts for luminaires and lighting systems easily in the extensive online range of eibabo. Besides ballasts in various designs (electronic, DALI, KL / LL, ECG, and many more) for all your applications, you will also find Powertronic and Quicktronic devices, QT-FIT ballasts, hot start devices and trigger / stabilization devices. You can find your new ballast, among others, among the following manufacturers: ABB Stotz, Arclite, Ceag emergency lighting, Houben, LEDVANCE and Philips lamps, Schuch Licht, Waldmann and Watt24. A ballast is usually applied as an electrical device for operating a gas discharge lamp. The most common types here are the conventional ballast and the electronic ballast. There are also electronic ballasts that make dimming (stepless adjustment of light output) possible. In addition, cold cathode lamps and LEDs are available. Basically, all ballasts must fulfill the following functions: First, ballasts provide a high voltage pulse which is required for starting a gas discharge lamp. This voltage pulse starts the ionization of the gas and the gas inside the lamp becomes electrically conductive. Furthermore, ballasts limit the discharge current flowing through the tube during operation of the lamp. Note that, during operation, gas discharge lamps have a negative differential resistance, which causes a voltage drop as the current increases. For this reason, never connect a gas discharge lamp directly to a voltage source, but always use the appropriate ballast! eibabo offer a wide range of ballasts in all major types from all major manufacturers.