Incandescent bulbs vary from 15 to 150 watts and produce a soft yellow-white light. Newer versions are available that produce a more neutral, white light color. Incandescent bulbs are available in a variety of shapes and sizes, with clear, frosted, or colored glass.
Incandescent bulbs are the most commonly used bulbs today. They are inexpensive and widely available, but they are being replaced by more energy efficient choices.