A lamp assembly and methods of assembling the lamp assembly are provided. The lamp assembly comprises a printed circuit board (PCB) having a face surface, a rear surface opposite the face surface, electrical traces on the rear surface, and an opening extending from the face surface to the rear surface, and a light emitting diode (LED) emitter having a dome portion, a body, and a plurality of electrical terminals connected to the body, wherein the body of the LED emitter is adjacent the rear surface, the dome portion of the LED emitter extends through the opening in the PCB to the face surface, and the electrical terminals are connected to the electrical traces on the rear surface.
A method for assembling light emitting diode units and a substrate in a light source module and a structure thereof are provided. The light emitting diode unit is made of a light emitting diode and a carrier. Every light emitting diode has a flanged profile in the bottom to form a leaned plane, and a corresponding hole is formed on the substrate. Hence, when the light emitting diodes are pressed on the surface of a radiator by the substrate to make a closer contact, the light emitting diodes will be able to bear the pressure by the flanged design.
