These heavy-duty faceted Christmas Light Bulbs come in a 25-pack and are available in 10 different colors! The bulbs feel very sturdy and have that classic faceted look of Christmas Lights. These have a E12 candelabra base so you can easily replace the bulb if needed and will screw into many common candelabra-type lighting fixtures. Our C7 Replacement Light Bulbs are a great inexpensive way to customize your Patio String Light Cords and are a great option for our DIY Outdoor String Lights.