This set of 4 Halloween lights features orange bulbs on a black wire, perfect for adding a festive ambiance to your home during the Halloween season. The 15ft string lights are incandescent, providing a warm and vibrant glow. Easy to use with a wall plug-in power source, these lights are energy-efficient with an Energy Star compliance. The Halloween-themed string lights from Wintergreen Lighting are ideal for creating a spooky and fun atmosphere for your holiday celebrations.