Christmas lights (also called fairy lights) are lights used to decorate Christmas. In the early 20th century, Christmas trees that were publicly displayed and illuminated with electric lights became popular. By the mid-20th century, it was customary to display electric light strings on streets and buildings. Christmas decorations isolated from the Christmas tree itself.
The technology used in Christmas lighting displays is very diverse, ranging from simple filaments, Christmas lights (also known as fairy lights), to fully animated animations of animated electronic devices and statues with complex lighting.
Christmas lights (also known as flashing lights, holiday lights, mini lights or fairy lights) are strings of lights used to decorate houses, public / commercial buildings and Christmas trees during Christmas and are one of the recognized forms of Christmas lights. Christmas lights have a dazzling configuration and colors. In some parts of the United States (such as Chicago), small "small" light bulbs often called fairy lights are also known as Italian lights.
The types of lights used in Christmas lighting are also very different, reflecting the diversity of modern lighting technology in general. Common light types are incandescent light bulbs, now light emitting diodes (LEDs), and they are becoming more and more energy-efficient and therefore more and more encouraged. Less common are neon suits.
Christmas lights using incandescent bulbs are notorious for their difficulty in troubleshooting and repair. In the 1950s and 1960s, when a single light bulb malfunctioned, the lighting units connected in series would go out completely. Therefore, in the near future, the mini lights were also equipped with a shunt so that the kit could continue to work in the event of a burned out bulb. However, if multiple bulbs fail or shunt badly, the string may still fail. There are two basic ways to solve this problem: replace one by one with a known good bulb, or use a test light to find out where the voltage is interrupted.
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