They offer better color rendition than the more efficient high or low-pressure sodium vapor lamps.

At about eight o'clock two yellow vapor lamps glowed high up in the rain and a dim stencil sign strung across the highway read: "Welcome to Realito."

By the time the last of them had lurched out onto the street, dirty brown light was filtering between the buildings and the vapor lamps were wan.

The gun room looked splendid under the glow of bright vapor lamps.

A block and a half away running diagonally across the street, under the halo of a vapor lamp, I see a feline form, shoeless, running, then turning to look.

The council had voted to use Low-Pressure Sodium (LPS) vapor lamps for their street lights.

An assistant keeper's house was added in 1908, and the light was upgraded to an incandescent vapor lamp in 1914.

The area was brightly lit by vapor lamps spaced at intervals for as far as he could see, which was a considerable distance.

At the turn of the century, an incandescent vapor lamp was used, followed by electric lights in 1919.

The parking lot was quiet and for the most part dark, with only a couple of vapor lamps and some low-voltage garden lights to worry about.