LED bulbs for decorative string lighting have become a popular choice. Use with either commercial grade or standard socket cords, LED bulbs are energy efficient and eco-friendly! Reduce power consumption by more than 90% compared with conventional bulbs. Furthermore, the low wattage allows you to run longer cord lengths. With the full range of socket sizes — Medium/E26, C9/E17 and C7/E12 — your LED outdoor string lights will brighten up your space for a long time.