Generally disclosed may be an LED lighting module (including but not limited to lamps, light bulbs, or light fixtures) with (i) rapidly replaceable LED light source units, (ii) rapidly replaceable driver circuitry, and (iii) efficient heat transfer. An aspect of the rapid replaceability of the disclosed light source is self-registration of the source's light elements, electronic drive components, and heat sources respectively relative to the optical, power supply components, and heat sink components of a lamp or other lighting device.