Colored LEDs emit a specific color light ( monochromatic light), regardless of the color of the transparent plastic lens that encases the LED's chip. There are two types of LEDs: colored LEDs and white LEDs. Colored LEDs are far more efficient at producing light than their colored incandescent counterparts. Light-emitting diode (LED) holiday lights are quickly gaining popularity in many places due to their low energy usage, long lifetime, and associated low maintenance. Mercury lamps have most of the spectrum in the UV range, so their inner part of the bulb is covered with a phosphor, which converts invisible UV radiation into blue, green, yellow or other-colored light. Neon lamps have a characteristic orange color, argon glow purple. They can glow in different colors, depending on the gas filling or the chemical composition of the phosphor. The most common are neon, argon and mercury fluorescent lamps. Glow discharge light bulbs also can be used as holiday lights. Some early Japanese-made lamps used colored glass. These lights produce a broad-spectrum white light, and are colored by coating the glass envelope with a translucent paint which acts as a color filter. Incandescent light bulbs have been commonly used in holiday lights until recently. While originally used during the Christmas holidays as Christmas lights, modern electric light arrays have become popular around the world in many cultures and are used both during religious festivals and for other purposes unconnected to any festivities. Holiday lighting technology has been subject to considerable development and variation since the replacement of candles by electric lights. ( Learn how and when to remove this template message) JSTOR ( December 2014) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Holiday lighting technology" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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