High intensity discharge (HID) is a general term for mercury, metal halide, and high-pressure sodium lamps. Mercury lamps operate at a relatively high pressure and temperature. Most of the light is ...

Spectral lamps are electric discharge lamps, using an electric charge that reacts with the gas, usually mercury or thallium vapor, in the pressurized chamber to produce light. Because the metal vapor ...

By 2027, EU countries will also cease producing, importing, and exporting certain types of mercury lamps. The new EU ...

Mercury, which is liquid at room temperature ... The shift from fluorescent lamps to more energy-efficient light-emitting diodes is expected to have a decarbonizing effect. If LEDs replace ...

When the mercury is excited by electricity, it emits ultraviolet (UV) light, which causes the phosphor to emit visible light. Fluorescent lamps have been widely used in commercial buildings for ...