and the extruded heat sink and a metal optic the inexpensive structure may be rapidly assembled application_number US 40123309 A description fig1 shows a front perspective view of a preferred embodiment of an led lamp assembly 10 the led lamp assembly 10 is constructed with a circuit board 12 one or more leds 18 an electrical connector 20 a heat sink 24 a back plate 32 an optic 48 and a front plate 64 fig3 shows an exploded front view of a preferred embodiment of an led lamp assembly 10 fig4 shows an exploded rear view of a preferred embodiment of an led lamp assembly 10 the circuit board 12 is a generally planar body with a first side 14 and a second side 16 formed in the circuit board is an inner wall 15 enclosing a through passage 17 the preferred through passage 17 is sized and shaped to snuggly receive an end portion of the optic 48 the circuit board 12 supports on the first side 14 one or more leds 18 that emits light along a path directed away from the first side 14 towards the optic 48 supported on the circuit board 12 is electrical circuitry the electrical circuitry may provide appropriate power and signal conditioning to the supplied electrical power that is then used to operate the leds 18 in the preferred embodiment circuit board 12 electrically connects the leds 18.