Energy Efficient and safeOutdoor string lights sets include bulbs and light strings,with classic LED edison bulbs cast a vintage glow like incandescent filaments,yet use up to 80% less power than incandescent bulbs.With an average lifespan of 30,000 hours, they outlive incandescents too. Patio lights are end-to-end linkable,connect up to15 strands of 120FT white cord, Easily light up a backyard party or camping wedding.Removable bulbs mean can use the stringer for lighting in other seasons. Weatherproof and ShatterproofOutdoor patio lights will turn your backyard, patio, and wedding into a warm getaway. The string lights are highly shatter-resistant,giving you peace of mind in whatever conditions you use,cloudy, damp, windy, foggy, rainy, snowy etc.Lasting and shatterproof bulbs make string lights a practical outdoor lights for outdoor space,use perfect for year-round use like gardens, patio and bistros, creating a festive and inviting atmosphere.