An emergency light includes a charging unit comprising a housing, a prong support rotatably secured to the housing, and a prong assembly fixedly secured to the prong support and being adapted to mate with a conventional electrical outlet; an illumination unit releasably disposed in the housing to be electrically connect to the charging unit; and a lamp indicator unit electrically connected to the charging unit and comprising a plurality of LEDs for indicating a charging state of the illumination unit. The rotation of the prong support, i.e., the prong assembly, is 90 degrees, 180 degrees, or 270 degrees. The illumination unit can be used as a flashlight after removing from the housing.