A preamble is usually used for formal documents; you wouldn't include one in a text to your best friend. noun-A preliminary statement, especially the introduction to a formal document that serves to explain its purpose. noun-An introductory occurrence or fact; a preliminary.
Screw-in types can be used in place of incandescents in standard lamp sockets. Available in a wide spectrum of colors. Warm white tones best duplicate the color of incandescents. Today's fluorescent bulbs come in a wide selection of sizes and can produce warm tones of light similar to those of incandescents.
Incandescent bulbs and halogen bulbs will work with any dimmer, and while the dimmer can be of the less expensive variety, keep in mind others come with additional features. People who want to use fluorescent and LED bulbs should enter the terms dimmable fluorescent light or three-way fluorescent or LED bulb.