To comply with new laws on reducing energy usage, fluorescent and HID lighting systems — both examples of arc discharge lamps — have become more complex and varied in their performance. To understand ...

A ballast for a fluorescent lamp has two primary functions: Provide high initial voltage to start the lamp; and regulate lamp current during operation. Common electronic ballasts convert 60-Hz line ...

Electronic ballasts used in fluorescent lighting systems can experience high failure rates, due to the fact that the ballast manufacturer may not have considered all failure mechanisms or provided ...

Memphis-based Green Ballast Inc. has completed installation of its fluorescent light ballasts in 11 Shelby County schools. Memphis-based Green Ballast Inc. has completed installation of its ...

An electronic ballast, in simplistic terms, takes a mains supply and transforms the energy to a storage capacitor, which in turn powers a half bridge to provide frequency-controlled power for a ...