Watch light

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a low-burning lamp used by watchers at night; formerly, a candle having a rush wick.

See also: Watch

References in periodicals archive ?
Subjects include Pin-Hole Cameras (August 18, 20, 22, 26 and 28) and Cyanotype Pictures (August 19, 21, 25, 27 and 29) - watch light exposing your pictures.
I think the only reason people came to watch Light Lunch was because of the warm-up man
Also watch light dance back and forth when there's movement in the water.