Incandescent Christmas Lights
Incandescent light bulbs have been commonly used in Christmas lights until recently. These lights produce a broad-spectrum white light, and are colored by coating the glass envelope with a translucent paint which acts as a color filter. Some early Japanese-made lamps, however, used colored glass. While incandescent light sets are less expensive to purchase than similar LED sets, the operating cost is significantly more. The paint on the incandescent bulbs suffer from fading or flaking when exposed to weather. Older bulbs were also coated on the insides of the bulbs to prevent this effect, but were more costly to manufacture.
Read more about this topic: Christmas Lighting Technology
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—Brenda Ueland (1891–1985)
“The seventh day of Christmas,
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—Babe Didrikson Zaharias (1911–1956)