Abstract: An LED lighting device includes an LED light engine and a heat sink including a heat dissipation structure. The heat dissipation structure includes: a plurality of heat conductive rod rows including a plurality of vertical heat conductive rods; a plurality of horizontal heat conductive rods including a plurality of surfaces and attached onto one end of the vertical heat conductive rods; another end of the vertical heat conductive rods vertically attached to a back side of the LED light engine; and a plurality of fin modules attached to any one of the surfaces of the horizontal heat conductive rods. Accordingly, the heat dissipation area is increased and the heat sink is separated from the LED light engine such that heat dose not accumulate thereon and the shortcoming of airflow on the heat sink can be overcome with improvements.

Abstract: An LED lighting device includes an LED light engine and a heat sink including a heat dissipation structure. The heat dissipation structure includes: a plurality of heat conductive rod rows including a plurality of vertical heat conductive rods; a plurality of horizontal heat conductive rods including a plurality of surfaces and attached onto one end of the vertical heat conductive rods; another end of the vertical heat conductive rods vertically attached to a back side of the LED light engine; and a plurality of fin modules attached to any one of the surfaces of the horizontal heat conductive rods. Accordingly, the heat dissipation area is increased and the heat sink is separated from the LED light engine such that heat dose not accumulate thereon and the shortcoming of airflow on the heat sink can be overcome with improvements.

Abstract: In an LED lighting apparatus and a heat sink thereof, the heat sink includes a heat dissipation structure for airflows, and the heat dissipation structure includes: a plurality of heat conductive rods arranged spaced apart from each other in rows and attached at a back side of an LED light engine; each heat conductive rod including an extension portion horizontally extended on at least one side of the LED light engine and a plurality of surfaces; and a plurality of fin modules attached to two corresponding surfaces of each one of the extension portions respectively; each fin module including a plurality of fins spaced apart from each other; wherein an air gap is formed between any two of the adjacent fin modules and a fin channel is formed between any two of the adjacent fins such that air flows through these air gaps and fin channels.