Creative and innovative new products in both the lamp and ballast markets continue to transform the lighting industry, enabling specifiers and users to translate “energy-effective lighting” into ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the late 1970s and early '80s many ...

Today, fluorescent lamps and tubes are found in many homes and commercial buildings. These lamps are gas-discharge lamps that use electricity to excite mercury vapor. The excited mercury atoms produce ...

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 ...