I detest sodium-vapor streetlights ... Our forced acceptance of sodium light’s ghoulish tint, an accident caused by the electrical vaporization of sodium metal in a gas-filled tube, makes ...

This leads to a phenomenon called cycling. Sodium vapor lamps work pretty simply. They’re a glass tube filled with a gas, and sprinkled with sodium and sometimes with a few other materials like ...

In 1846 the Cleveland Gas Light & Coke Co. was ... with the building of a municipal light plant along the lakefront at E. 53rd St. Decades later, new streetlighting innovations emerged with such types ...

How is it decided when to use a new LED lamp versus an older sodium-vapor lamp when repairing a broken streetlight? The latest query in our weekly What's Up With That? series, a question from ...

While an unfortunate few still suffer under one of the awful colors offered by vapor discharge lamps, like the pink or orange of sodium or the greenish-white of mercury, most municipalities have ...

Mercury vapor lamps declined 9.6% to an index value of 44 signifying that shipments during 2012 were 44% of the 2006 base level. The index for sodium vapor lamp shipments fell 6.2%, landing at 75.