Upgrade your old incandescent C7 bulbs with HolidayLEDs.com C7 LED retrofit replacement bulbs. Each C7 bulb uses 3 high power LEDs which draw less than 1 watt of power. Rated for 50,000 hours of use, you will not have to worry about climbing up on an icy ladder to change your lights with our C7 replacements. Package of 25 bulbs. Dimmable.