A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties...

A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized mercury to produce light. The arc discharge is generally confined...

metal vapor. The usual metals are sodium and mercury owing to their visible spectrum emission. One hundred years of research later led to lamps without...

metal-halide lamps as used in cinematography Mercury-vapor lamp Sodium-vapor lamp Neon lamp Sulfur lamp Charles Proteus Steinmetz Hordeski, Michael F. (2005)...

incandescent lamp was $280; for mercury vapor lamps, it was $128; and for low-pressure sodium vapor lamps, it was $60 a year. Meanwhile, high-pressure sodium vapor...

gas discharge tube (arc tube) and a metal cap. They include the sodium-vapor lamp that is commonly used in street lighting. Borosilicate glass usually melts...

Varieties of HID lamp include: Mercury-vapor lamps Metal-halide (MH) lamps Ceramic MH lamps Sodium-vapor lamps Xenon short-arc lamps The light-producing...

Mercury-vapor lamps and sodium vapor lamps produce light from atoms in excited states. Flammable liquids do not burn when ignited. It is the vapor cloud...

and cites SLIders' claims of being able to "extinguish a row of sodium vapor lamps in sequence, each one going out as the witnesses nears it." Some proponents...

indicates the lamp is a sodium vapor lamp (HPS/LPS). A blue sticker indicates the lamp is mercury vapor (MV). A red sticker indicates the lamp is metal halide...