Provided is a lighting apparatus that includes a lighting source comprising a plurality of light emitting diodes (LEDs), one or more heat sink components dissipating heat generated by the LEDs, each heat sink component includes a first material layer, and a second material layer formed of a crystalline-graphitic-carbon-based composite comprising a crystalline-graphitic-carbon-based thermal optical element and a highly reflective optical coating combined together, and laminated with the first material layer.