LED replacement lamps screw into standard C7 and C9 sockets. Featuring advanced technology in newer, brighter dimmable bulbs, C7 and C9 bulbs offer higher diode count than the competition - up to 5 diodes in C9 bulbs. Bulbs are strong acrylic resin and faceted for increased light reflection, and nickel sockets prevent corrosion. Our LED bulbs have the construction to last the 60,000 hours they are rated for. Enjoy the benefits of switching to LED replacement lights, including extended bulb life, bulbs that will not break, fade or crack, vivid light colors, high diode count for increase luminosity, and the ability to connect more together! Read our LED Christmas Lights Guide for more information.