A gas light connected with its source by a flexible tube.
1862. The family gathered with books and needles around the drop-light.Knick. Mag., lix. 134 (Feb.).
1890. A big-boned, dust-colored young woman reading a calf-bound volume at a drop-light.Viola Roseboro, The Last Marchbanks, Century Magazine, xxxix. p. 764/1 (March). (N.E.D.)