May all your Christmases be merry and bright with festive green and red holiday lights! Our commercial quality strings and energy efficient C9 red and green LED bulbs combine to create a long lasting, weather resistant, professional quality display you'll love to show off! Illuminate your outdoors in cheerful lighting and create high impact light displays with ease when you hang C9 bulbs across the roof and along the fence!Commercial grade retro C9 Christmas lights with 18 gauge green wire. 5 premium grade LEDs within each bulb offer superior brightness for professional installations. Professional sockets feature weep holes for trouble free damp weather performance. Heavy duty SPT2 insulation. Top quality dimmable bulbs work great in steady or animated displays. Nickel plated bases prevent corrosion and improve connectivity, saving you time and money. Diamond faceted bulb design reflects a spectacular light and color halo. 0.96 watt energy efficient bulbs reduce power needs by up to 90%. Highly durable acrylic resin bulbs are virtually unbreakable, and colors never fade, chip or crack. LED bulbs always remain cool to the touch. Indoor / Outdoor use.