- Around the 17th century, lights were being used on Christmas trees in homes, though they differed from what we use now. Candles were melted onto tree branches and lit to give off a soothing glow. As time passed, using candle holders became a more common practice. The practice spread from its origin in Germany to other parts of Europe, building the tradition. However, it wasn't until 1882 that an associate of Thomas Edison, named Edward Johnson, invented the first electric string of Christmas lights.
- Christmas lights themselves can be used to stand for more than the beauty they create. The idea came from the Medieval Period, where lit candles symbolized Jesus and how he was a light to the world. It is believed that religious reformer Martin Luther was the first to actually attach the light candles to the Christmas tree.
- Beyond their religious symbolism, however, Christmas tree lights serve a variety of other functions. Stores use them in large quantities to entice shoppers. People also compete among themselves to see whose house boasts the most breathtaking decorations. The lights also are used to entertain and add to the holiday cheer.
- Some Christmas trees come with the bulbs already attached to the branches to avoid the hassle of stringing them. While most strings of lights are referred to as Christmas tree lights, some kinds can also be used outdoors or around the house. Outdoor lights are normally strung along the eaves of a house. A well-liked theme is a strand of lights made to look like tiny snowflakes falling from the roof. Finally, three-dimensional decorations are used as well. These are usually a famous Christmas character made out of plastic or wire and decorated in specifically colored lights. Wired outdoor trees are also popular. Bulbs can be in many colors and may flash or twinkle.
- The use of Christmas tree lights has expanded beyond its religious roots, and the lights can also be used for other holidays. Valentine's Day lights maybe in red, white, and pink, and Halloween lights can be in black, purple and orange.
