Patent ID: 8702272

Claim:
A light-emitting diode (LED) light bulb, comprising: a light bulb adapter; a housing fixed on the light bulb adapter and having an accommodating space, wherein the housing has at least a vent hole; a convective heat dissipation piece comprising a first heat dissipation part and a second heat dissipation part connected under the first heat dissipation part, wherein the second heat dissipation part is located in the accommodating space; an outer border of the first heat dissipation part is exposed to the outside and a lower border of the first heat dissipation part has a first gap with respect to the upper border of the housing; the second heat dissipation part has a second gap with respect to an internal wall of the housing; the first gap, the second gap and the vent hole of the housing are connected; a plurality of first through-holes extend from a top surface to a bottom surface of the first heat dissipation part and connect with the first gap; and a second through-hole extends from the top surface of the first heat dissipation part to a bottom surface of the second heat dissipation part and connects with the second gap; a light-emitting module disposed on a top surface of the convective heat dissipation piece and having a third through-hole connected with the second through-hole; and a light bulb cover disposed on the top surface of the convective heat dissipation piece and covering the light-emitting module.