Lighting bulbs & tubes

Lighting bulbs & tubes

Industry: Lights & lighting

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Lighting bulbs & tubes

carbon arc lamp

Lights & lighting; Lighting bulbs & tubes

Carbon arc lamps consist of two carbon rod electrodes in open air, supplied by a current-limiting ballast. The electric arc is struck by touching the rods then separating them. The ensuing arc heats ...

discharge lamp

Lights & lighting; Lighting bulbs & tubes

A discharge lamp has a glass or silica envelope containing two metal electrodes separated by a gas. Gases used include, neon, argon, xenon, sodium, metal halide, and mercury. The core operating ...

incandescent light bulb

Lights & lighting; Lighting bulbs & tubes

The incandescent light bulb produces light by heating a metal filament wire to a high temperature until it glows. The hot filament is protected from oxidation in the air with a glass enclosure that ...

LED lamp

Lights & lighting; Lighting bulbs & tubes

Solid state LEDs have been popular as indicator lights since the 1970s. In recent years, efficacy and output have risen to the point where LEDs are now being used in niche lighting applications. ...

low-pressure sodium (LPS)

Lights & lighting; Lighting bulbs & tubes

Low-pressure sodium (LPS) lamps have a borosilicate glass gas discharge tube (arc tube) containing solid sodium, small amount of neon, and argon gas in a Penning mixture to start the gas discharge. ...

high-pressure sodium (HPS)

Lights & lighting; Lighting bulbs & tubes

High-pressure sodium (HPS) lamps are smaller and contain additional elements such as mercury, and produce a dark pink glow when first struck, and a pinkish orange light when warmed. Some bulbs also ...

incandescent lamp

Lights & lighting; Lighting bulbs & tubes

The incandescent lamp produces light by heating a metal filament wire to a high temperature until it glows. The hot filament is protected from oxidation in the air with a glass enclosure that is ...