LED module is a light source containing only LEDs as a light source. LEDs module means and assembly having no cap and incorporating one or more LED packages on a printed circuit board. The assembly may have electrical, optical, mechanical, and thermal components, interfaces and control gear. Led light module or light emittingdiode module, is an LED device that is made to either function alone or that is pluggable into a compatible unit for power up. LED modules often have one or more LED emitters contained in a board fixture that powers the LED lights or plugs into a unit that powers the LED module .