Patent ID: 7165866

Claim:
A bulb comprising: a seat; a plurality of metal heat sinks each having two fixing surfaces, one fixing surface being fixed with a light emitting chip; and one end of each metal heat sink being placed into an insulated frame and then being fixed to a supporting surface of a heat conductive base; the metal heat sinks having an effect of absorbing heat energy and then transferring heat to the seat so us to dissipate heat; the heat conductive base having the supporting surface for fixing the metal heat sinks; the metal heat sinks being integrally formed with a bulb base and then being combined to the seat; the heat conductive base is a tin surface and having an inclined surface for reflecting light from the light emitting chip so as to increase the illumination of the light emitting chip; the heat conductive base being capable of absorbing heat energy from the metal heat sinks; and a metal adhesive layer being assembled to the supporting surface of the heat conductive base and the fixing surfaces of the metal heat sinks.