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lumens
The Collaborative International Dictionary
Lumens

Lumen \Lu"men\, n.; pl. L. Lumina, E. Lumens. [L., light, an opening for light.]

  1. (Photom.)

    1. A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the center of the sphere.

    2. A unit of light flux, being the flux through one square meter of surface the illumination of which is uniform and of unit brightness.

  2. (Biol.) An opening, space, or cavity, esp. a tubular cavity; a vacuole.

Wiktionary
lumens

alt. (plural of lumen English) n. (plural of lumen English)

Usage examples of "lumens".

These were forbidden by Darkovan statutes, and the only contraband in the bags was a tiny box of lumens, little light-emitting dots that could be applied to any surface.

Herm was fond of reading in bed, and the lumens allowed him to do so without disturbing his wife.

He assembled a few other things he thought he needed—a knife, a firestone, a second shirt, and quite against half a dozen Federation regulations, the lumens he had smuggled in.

So the photomorph puts out an impressive number of lumens and overwhelms the prey's photosensors.