There is disclosed a lighting apparatus including t light emitting unit including a light emitting part having a LED, a base part in which the light emitting part is mounted, a plurality of heat pipes fixed to the base part, and a plurality of heat radiation plates comprising a plurality of insertion holes to pass the plurality of the heat pipes there through and a flow hole for flowing external air there through, respectively, wherein a plurality of auxiliary pin arrays comprising a plurality of auxiliary pins inclined a preset angle are provided in each of the heat radiation plates, and a turbulence generation unit for generating turbulence flow when external air is flowing is provided in the auxiliary pin.