1.   Cohn has also mounted a video camera on an Amtrak train to determine what lighting devices might help motorists determine the speed of an approaching train.

2.   His inventins include a lighting device to help shift workers adjust their internal clocks and a catheter that destroys the heart cells responsible for fatal arrhythmia.

3.   Most fiber-optic lighting devices use thick bundles of strands, and those strands usually are made of quartz to prevent melting during high-energy transmissions.

4.   Part of his installation at Mass MOCA will feature small glass Lucifers lurking around various lighting devices and drawing attention to the odd behavior of light.

5.   The exhibition focuses on the epochal invention of artificial lighting devices powered by gas and electricity, a breakthrough that changed not only society but art history as well.

6.   The sale includes furniture, carpets, porcelain and lighting devices.

7.   The term sconce is used to describe a variety of lighting devices.