safelight

As nouns the difference between terms and safelight

is that terms is while safelight is the lamp in a darkroom.

As nouns the difference between darkroom and safelight

is that darkroom is a dark room, where photographs are developed while safelight is the lamp in a darkroom.

As an acronym lamp

is (internet) linux, apache, (mysql), and php — a popular combination of open source software for use as a web server.

As a noun safelight is

the lamp in a darkroom.