Never find yourself without a replacement bulb when a light goes out keep yourself prepared this holiday season. There is no need to throw out an entire string of lights ever again. These C7 bulbs are UL certified and approved for indoor or outdoor use. Product Features: Pack of 25 incandescent opaque yellow C7 replacement bulbs. Finish: opaque. Color: yellow. Bulb size: C7. E-12 brass base. UL certified and approved for indoor or outdoor use. 120 volts 5 watts. Dimensions: 2" high x 1" diameter. Material(s): plastic