The history of the gas discharge lamp starts in 1675, when Jean-Félix Picard, a French astronomer, observed that the empty space of his mercury barometer emitted a faint glow as the mercury jiggled.

The conceptual design of a halide gas discharge lamp dates back to 1912, ... HALOGEN LAMPS A halide is a chemical compound of halogen with an electropositive element. Each halide salt (mercury, AgCl, ...

High-intensity gas discharge (HID) lamps produce 26 percent of the nation's light output, but, as a result of their high energy efficiency, ...

High-intensity gas discharge (HID) lamps produce 26 percent of the nation's light output, but, as a result of their high energy efficiency, consume only 17 percent of the electricity used for ...

A DISCHARGE of electricity through a gas at atmospheric pressure generally takes the form of a luminous spark which will pass only under a potential gradient of several thousand volts per centimetre.

Completely transforming our project F-150, the Raptor Retrofit black headlights perfectly complemented the new black grille and black wheels. We also got the added benefit of genuine HID lighting.

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 ...