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.
JC type halogen light bulbs are available in both clear and frosted glass. Please note that JC type halogen light bulbs should not be touched with bare skin. Halogen light bulbs utilize a semi-permeable glass with can be penetrated by oil from skin. The oil creates hot spots on the glass that reduces the bulb's life.