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 ...

HPS, or high-pressure sodium, bulbs are one of the most popular HID (high-intensity discharge) lamps in use today. Heavier in the orange-to-red wavelengths, HPS bulbs provide excellent spectrum for ...

Electronic HID (high intensity discharge lamp) ballasts: how they work, how to control them, and develop an electronic ballast solution for outdoor lighting applications. Hbrightness metal halide ...

An X-ray technique developed by physicists at the National Institute of Standards and Technology (NIST) sheds more light on temperature distribution in high-intensity gas-discharge (HID) lamps. In the ...