Holiday Essentials 100 Ultra-Brite Green Lights with Green Wire - Indoor / Outdoor Use - UL Listed 100 Ultra Brite Green Mini Bulbs String Light Set with Green Wire - Steady Burn & Flashing Modes 2016 UL Certified - For Indoor & Outdoor Use End to End Connectors - 5 Sets Of Light Strings Can Be Connected Together If 1 bulb burns out, the rest remain lit. - Includes 2 Flasher Bulbs, 2 Replacement Regular Bulbs, & 1 Replacement Fuse Lighted Length: 18.56 Feet - Total Length: 20 Feet - 2.5" Spacing between Bulbs