nightlight

thumb|An LED nightlight A nightlight is a small light fixture, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times, such as at night or during an emergency. Small long-burning candles serving a similar function are referred to as "tealights".

== Uses and cultures == People usually use nightlights for the sense of security which having a light on provides, or to relieve fear of the dark, especially in young children. Nightlights are also useful to the general public by revealing the general layout of a room without requiring a major light to be switched on, for avoiding tripping over stairs, obstacles, or pets, or to mark an emergency exit. Exit signs often use tritium radioluminescence. In homes, nightlights are usually placed in bathrooms, kitchens and hallways to avoid turning on the main light fixture, especially late at night, which causes their eyes to adjust to the brighter light.