The Alpha Communications®/Tektone LI381 corridor dome light (with single white bulb) and LI382 corridor zone lights (with white and red bulbs) provide visual indication of any type of call when used with a nurse-call, emergency-call, or for stand-alone signaling applications. When used with our NC110N, NC150N or NC200N series nurse-call systems, emergency calls are indicated by the rapid flashing of the LI381 corridor dome light associated with the calling station. Normal (routine) calls produce a steady illumination. The LI382 corridor zone light indicates an emergency call by the rapid flashing of the red lamp associated the zone or area from which an emergency call has been placed. Normal calls are indicated by a steady illumination of the white lamp. Both models mount on a standard 2-gang electrical back box and feature an easily removable white translucent cover for quick bulb replacement, without the use of any tools required.