| 摘要 |
A heat sink for LED bulbs includes a base having male threads engaged with a socket connected to a power and female threads engaged with male threads of a base connector. The base connector has a chamber co-working with a chamber of a lamp casing to accommodate a controller, and locking projections to fix the lamp casing. The lamp casing is formed as a trumpet, having plural positioning projections and an outer surface coated with a heat dispersing paint to scatter heat created by LED bulbs. A heat conducting plate is placed in a top circumference of the lamp casing, interlocked with the positioning projections. A circuit board has a positioning hole locked upward by a bar of the heat conducting plate, with LED bulbs laid on the circuit board. A bulb hood is capped on the lamp casing.
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