Lighting bulbs & tubes

Lighting bulbs & tubes

Industry: Lights & lighting

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Lighting bulbs & tubes

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. ...

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 ...

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. ...