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 ...

Editor’s note: Traditional magnetic ballasts that we all know so well are slowly being phased out. The older magnetic designs are not so efficient and electronic versions increase reliability while ...

Despite the long history of development and use of high-intensity discharge (HID) lamps, many in the industry expect that they will soon become extinct, given the rapid growth of light-emitting diode ...