Holiday Essence 100 Multi-Color Christmas Lights with Green Wire &ndash; Professional Grade for Indoor/Outdoor Use &ndash; Static + Flashing Bright Multi-Color Mini String Lights for Indoor & Outdoor Use - UL Listed 2 Functions: Steady Burning or 2-Way Flashing Length of Light String: 19 Feet - 2" Space between Bulbs - End to End Connectors - Safety Fuse 125 Volt - Spare Bulbs & Fuse Included - Replaceable Safety Fuse Plug If one bulb burns out, the others remain lit You Can Safely Connect up to 5 of these Light Sets