LIGHTING APPARATUS

摘要

PURPOSE: A lighting device is provided to improve heat dissipation efficiency by forming a ventilation passageway between the first and the second block of a radiating part. CONSTITUTION: A lighting device comprises an optical source part(110), a power supply part(120), and a radiating part(130). The optical source part comprises at least one light source part. The power supply part electrically interlinks an external power supply part to the optical source part. The radiating part emits heat, which is generated from the optical source part, to the outside. The radiating part has a cylindrical or a cone shape. The radiating part includes a first block and a second block. The first block and the second block are detachably combined with each other.