The Holiday Time 100 Red Mini LED Christmas Lights are a festive and versatile string light set perfect for various occasions like Christmas, Valentine's Day, and more. These electric-powered lights feature a green wire for easy installation both indoors and outdoors, with a compact size of mini lights that provide a warm and cozy ambiance. With 100 bright red LED lights and a total length of 21 feet, these UL certified lights from Holiday Time are a popular choice for adding a touch of holiday cheer to your decor.