Christmas lights are an essential part of the holiday season. They can bring a festive atmosphere as the darkness of winter is lit up with a glowing display. In some places, the custom of putting up Christmas lights has long been a tradition. The most popular decorative item during the holiday season is the classic set of Christmas tree lights. These lights typically come with multi-colored bulbs that can either be arranged in alternating patterns or be randomly plugged in to create a bright and enchanting glow. A variation of the classic set is the net type of lights, which stretch a grid of small bulbs over bushes, trees, or other outdoor structures. Both of these sets create a vivid and inviting atmosphere. In addition to these classic sets, there are a variety of other lights available to add to the holiday cheer. Many places create elaborate displays using lighted deer, reindeer, snowmen, and other characters from the season. Icicles and LED lights of all sizes and colors add more tasteful effects. Christmas lights help to set the mood for a wonderful holiday season. They brighten up the dark days of winter and act as a welcome sign to the family and friends of the season. Whether it is a small or large display, the beauty of the visual effects adds a special touch of joy to the holiday.