C7 refers to a specific bulb size and shape commonly employed in Christmas lighting. These bulbs, characterized by their candelabra base, often find application in string lights used for decorating homes and trees during the holiday season. The Home Depot, a major retailer of home improvement and related products, is a significant vendor of these lighting products. An example of its use would be wrapping the roofline of a house with a string of these bulbs to create a festive appearance.
The popularity of this type of bulb stems from its classic aesthetic and versatility. They offer a balance between size and brightness, making them suitable for both indoor and outdoor applications. Historically, these bulbs represent a shift towards safer and more energy-efficient Christmas lighting options compared to older incandescent technologies. Their widespread availability and relatively low cost further contribute to their sustained demand during the holiday season.
