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.
Halogen bulbs produce a bright white light. They become much, much hotter than other types of bulbs and should not be used near combustible materials or touched during or shortly after use. Fluorescent: These tube-shaped lights are often used as overhead lighting for large areas such as retail stores or home basements.
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.