Abstract: A projection lamp utilizing light emitting diodes (LEDs) includes a housing, a lamp board positioned on the housing, an upper covering the lamp board, and a lens positioned above the upper cover. The lamp board includes a plurality of LEDs. A majority portion of the housing and the upper cover is composed of thermally conductive materials. The housing includes a plurality of latch holes, the upper cover includes a plurality of latching chambers corresponding to the latch holes, and the lens includes a plurality of latching members extending through the latching chambers to engage the housing latch holes.

Abstract: A projection lamp utilizing light emitting diodes (LEDs) includes a housing, a lamp board positioned on the housing, an upper covering the lamp board, and a lens positioned above the upper cover. The lamp board includes a plurality of LEDs. A majority portion of the housing and the upper cover is composed of thermally conductive materials. The housing includes a plurality of latch holes, the upper cover includes a plurality of latching chambers corresponding to the latch holes, and the lens includes a plurality of latching members extending through the latching chambers to engage the housing latch holes.

Abstract: An LED street light includes a bottom cover, a lamp board positioned on the bottom cover, a top cover coupled with the bottom cover and positioned above the lamp board, and a plurality of lenses mounted on the top cover. A majority of the top cover and the bottom cover are made of thermally conductive material. The bottom cover comprises a plurality of heat dissipation columns spaced from each other. The top cover includes a plurality of recesses for transmitting light from the lamp board, and the recesses are substantially annularly shaped.