LED module and LED lighting device comprising same

A light-emitting diode (LED) lighting device comprising:

• a light source unit which includes one or more LEDs mounted on one surface of a circuit board;
• a heat sink which includes a base substrate configured to support the light source unit and radiate heat generated from the light source unit and an insulating heat radiation coating layer applied on an outer surface of the base substrate;
• a protective cover which includes a convex portion formed in a region corresponding to the LED and is coupled to one surface of the heat sink to protect the light source unit from an external environment;
• an air flow space which is formed between the light source unit and the protective cover;
• and
• one or more air vents which provide a passage between the air flow space and the outside, block a foreign substance and water from moving therethrough, and allow air to pass therethrough to balance internal pressure of the air flow space with pressure of outside air,
• wherein the light source unit is electrically connected to an external power source through a connector to which a cable is connected,
• a longitudinally middle portion of the cable is connected to a cable fixture detachably coupled to the heat sink, and
• the one or more air vents include a movement path formed to pass through the cable fixture and communicate with the air flow space and a vent member attached to one surface of the cable fixture to cover the movement path.