- 200 warm white individual LED light bulbs make up a 20-meter string of Christmas lights. - Because every Christmas light has an end-to-end connection, you can join up to three sets to light a larger area. - Eight Lighting Settings - 29V low voltage transparent wire lights: simply plug it in and unplug it to turn the power on and off. These lights can stay cool for hours after being lit up. - 220V of voltage. - Total length (20 meters) (lights string and leading line). String lights are great for decorating indoor and outdoor spaces. They're perfect for weddings, parties, Christmas, homes, bedrooms, walls, gardens, and balconies.