Abstract: An LED lighting fixture includes: an LED unit which emits light; a control board in which a plurality of LED units are arranged and which supplies power to the LED unit; a heat dissipation unit which is coupled to the control board so as to transmit heat generated from the control board; a cooling unit coupled to the heat dissipation unit for cooling the heat dissipation unit by non-powered circulation of an embedded actuating fluid; and a hollow illumination body unit which embeds the heat dissipation unit and the cooling unit therein and supports the heat dissipation unit so as to have the LED unit exposed.

Abstract: An LED lighting fixture includes: an LED unit which emits light; a control board in which a plurality of LED units are arranged and which supplies power to the LED unit; a heat dissipation unit which is coupled to the control board so as to transmit heat generated from the control board; a cooling unit coupled to the heat dissipation unit for cooling the heat dissipation unit by non-powered circulation of an embedded actuating fluid; and a hollow illumination body unit which embeds the heat dissipation unit and the cooling unit therein and supports the heat dissipation unit so as to have the LED unit exposed.

Abstract: A cooling device for an LED lighting apparatus is disclosed to emit heat generated from the LED lighting apparatus using an LED. The cooling device for a light emitting diode (LED) lighting apparatus to emit heat generated from the LED lighting apparatus that uses an LED includes a heat pipe comprising an end coupled to the LED lighting apparatus, the heat pipe comprising working fluid mixed with a medium and powder having an infrared ray emission property, and a radiation fin provided at the other end of the heat pipe. An LED lighting apparatus includes the cooling device, a mounting plate mechanically coupled to the cooling device for the LED lighting apparatus, the mounting plate formed of a metal material, an LED substrate mounted to the mounting plate, the LED substrate comprising at least one LED arranged thereon, and an LED driving circuit configured to drive the LED.