Patent ID: 8480269

Claim:
A lamp, comprising: a housing including an opening end and a compartment communicating with the opening end; a heat sink disposed at the opening end and including a lateral wall, a base, a plurality of first connection members, a plurality of first air channels and at least one second air channel, wherein the base includes a first face and a second face opposite to the first face, the first face faces the compartment, and each of the first connection members is a fin protruding out of the first face of the base and extending in a radial direction from the inner circumferential wall of the lateral wall towards a center of the first face, wherein each of the first connection members has a first end and a second end in the radial direction, with the first end connecting with the inner circumferential wall of the lateral wall and with the second end extending towards a center of the first face, wherein the base is surrounded by and spaced from the lateral wall, the base is connected to an inner circumferential wall of the lateral wall via the first connection members, each of the first air channels is formed between adjacent two of the first connection members, and extended in the radial direction, and the at least one second air channel is formed between an outer circumferential wall of the lateral wall and an inner face of the housing; a fan disposed at one side of the heat sink in the compartment, with the fan having a lower side and a separation portion, with the lower side of the fan facing the heat sink and having an opening, with the separation portion extending from the opening to the lateral wall of the heat sink, and with the second end of each of the first connection members stretching into a position axially between the fan and the base; and a light-emitting element disposed at another side of the heat sink.