Wintergreen Lighting Dimmable C7 Smooth LED Light Bulbs - Pack of 25. Wintergreen Lighting C7 LED bulbs transform traditional lighting, offering sustainability for the future through energy saving technology. 120 volt replacement LED Steady Christmas bulbs. These LED bulbs offer over 60,000 hours of use. E12 - Candelabra bases screw into existing sockets making upgrading to LEDs easy. Dimmable bulbs offer the same bright illumination, with the ability to dim with the use of controller. Retrofit bulb fits in a standard C7 socket. Nickel base prevents corrosion for improved bulb performance. Features: C7 bulbs, 3 diodes, dimmable. Smooth surface bulb, Nickel base, 60,000 average hours, epoxy plastic bulb material. Power: 0.96 watts per bulb, 130 volt. Materials: Epoxy Plastic Dimensions: 7/8" bulb diameter, nickel base.