Charming Christmas Lights: Package include 1 x 20ft mini string light, 1 x spare fuse, 4 spare incandescent bulbs. The lighted length of outdoor Christmas lights is 18.5 ft, the leading wire is 1.5 ft, and the bulb space is 2.25 inch, work voltage of each bulb is 2.5V / 0.42W, safety with built in 3A fuse. End to End Extendable: Each set of light have male and female plug, can connect up to 6 sets (Max 600 Count). Max string lighting length is 120 FT, allow you to decorate various scenarios. Each bulb has 2,500 hrs lifetime. Durable for use. High Quality: The Christmas tree lights is IP 44 waterproof, build-in 3A fuse and pass with UL certified, is safety for both indoor and outdoor decorations. Each bulb works individual, others will work well when one bulb is defective. Just use the spare bulbs to replace the defective bulb. Exquisite Christmas Lights: The bright Incandescent Christmas string lights is suitalbe for indoor outdoor decor, such as home, porch, roof, garden, patio, pathway, balcony, bathroom, tree, fences, wreaths. Perfect for holiday, birthday, festival, wedding, Christmas party decorations. Good Service: If you have any using problem or product quality issue, please contact with us, we will help you solve problem and answer you within 24hrs. TW SHINE Christmas Lights, 20FT 100 Count Incandescent Mini Christmas Tree Lights, Waterproof Xmas String Lights for Outdoor Indoor Home Party Yard Decorations, Pink