C7 LED replacement bulbs fit in any E12 candelabra base. Replace old, dull bulbs with the vibrant color of LEDs. Wintergreen Lighting C7 LED replacement bulbs are rated for 60,000 hours of use and are made of virtually unbreakable plastic. Popular in commercial use, C7 LED replacement lamps come in a variety of colors and styles. Choose C7 LED twinkle bulbs for holiday animation.