Fantado 25 Outdoor Blue LED C9 Strawberry String Lights, 16.6FT Green Cord, Weatherproof, Expandable by PaperLanternStore This is our LED C9 string light set in the blue Color Our blue LED lights will brighten up any holiday display or event This string light has a non removable high quality LED light bulb This set is UL listed and rated for indoor and outdoor use Fantado products are UL listed and meet 16 CFR 1120.3(C) certification