To provide an LED unit capable of sufficiently radiating heat of each LED with a simple structure and fixing to a wall face in the room as it is.

The LED unit can be fixed to a wall face as a pair of tongue pieces formed as a fixing part at the end of a unit board 1 are inserted into a pair of receiving fittings fixed on the wall face in the room, and, for example, if it is fixed with one of the faces of the unit board 1 on which three LED packages 2 are mounted facing downward, the light lighted by turning on of each LED package 2 illuminates the lower part in the vicinity of the wall face through a translucent cover. At that time, heat by turning on each LED package 2 is radiated sufficiently by a plurality of heat radiation fins 1C which are exposed on the upper part of the unit board 1. As a result, high temperature of each LED package 2 is suppressed to prolong the lifetime of each LED package 2.