A lighting device comprising: a housing comprising a power connection hole; at least one light source module disposed on a lower surface of the housing; and a front cover coupled to the housing to define a space in which the light source module is located, the front cover transmitting light generated by the light source module, wherein: the light source module comprises a support protrusion supported by the front cover; and the front cover presses the support protrusion when the front cover is coupled to the housing, further comprising: a power unit spaced apart from the housing to supply power to the light source module; a connection unit connecting the housing to the power unit and comprising a cable hole through which a cable passes therein and a connection body surrounding the cable hole, a portion of the connection body being inserted into the power connection hole; and a light source fixing unit for fixing the light source module to the connection unit, wherein the light source fixing unit comprises: at least one light source fixing groove formed in such a manner that an inner surface forming the cable hole in the connection body is recessed outward; and a light source fixing protrusion formed in the light source module to be matched with the light source fixing groove. a housing comprising a power connection hole; at least one light source module disposed on a lower surface of the housing; and a front cover coupled to the housing to define a space in which the light source module is located, the front cover transmitting light generated by the light source module, wherein: the light source module comprises a support protrusion supported by the front cover; and the front cover presses the support protrusion when the front cover is coupled to the housing, further comprising: a power unit spaced apart from the housing to supply power to the light source module; a connection unit connecting the housing to the power unit and comprising a cable hole through which a cable passes therein and a connection body surrounding the cable hole, a portion of the connection body being inserted into the power connection hole; and a light source fixing unit for fixing the light source module to the connection unit, the light source module comprises a support protrusion supported by the front cover; and the front cover presses the support protrusion when the front cover is coupled to the housing, further comprising: a power unit spaced apart from the housing to supply power to the light source module; a connection unit connecting the housing to the power unit and comprising a cable hole through which a cable passes therein and a connection body surrounding the cable hole, a portion of the connection body being inserted into the power connection hole; and a light source fixing unit for fixing the light source module to the connection unit, a power unit spaced apart from the housing to supply power to the light source module; a connection unit connecting the housing to the power unit and comprising a cable hole through which a cable passes therein and a connection body surrounding the cable hole, a portion of the connection body being inserted into the power connection hole; and a light source fixing unit for fixing the light source module to the connection unit, wherein the light source fixing unit comprises: at least one light source fixing groove formed in such a manner that an inner surface forming the cable hole in the connection body is recessed outward; and a light source fixing protrusion formed in the light source module to be matched with the light source fixing groove. at least one light source fixing groove formed in such a manner that an inner surface forming the cable hole in the connection body is recessed outward; and a light source fixing protrusion formed in the light source module to be matched with the light source fixing groove.