Lighting device

A lighting device comprising:

• a light emitting module which includes a substrate having a via-hole and includes a light emitting device disposed on the substrate;
• a cover which is disposed on the light emitting module, protects the light emitting module and has a material diffusing light generated from the light emitting module;
• a power controller which includes an electrode pin electrically connected with the light emitting module through the via-hole;
• a heat sink which includes one surface on which the light emitting module is disposed, a receiving recess in which the power controller is disposed and a hole through which the electrode pin passes;
• and
• an inner case which receives the power controller and is disposed in the receiving recess of the heat sink, and which prevents electrical contact between the heat sink and the power controller.