Bathroom Light Fixture, and Stiffel Lamps. Pretty high on the wall by the vanity is a popular place for some of these fixtures. None were commercially successful, however, both because the vacuum pumps of the time could not create a vacuum strong enough to protect the wire filaments and because electricity was expensive to obtain. In a 60-watt bulb, the coil is less than an inch long. When placing your low voltage twilight lighting on land, you can hide the cords under rocks, bushes and behind trees. Edison papers project at rutgers university in new jersey took a look back at edisons storied career. Kerosene lamps remained the primary lighting source until electricity became widely available in the 1930s and 1940s. Conversely, when your screen may be in a shot on a television show, the requirement will often be for lower brightness levels with lower color temperatures.