What is an LED module or LED array?

An LED array or module refers to an assembly of LED packages (components), or dies (or chips) on a printed circuit board or substrate, oftentimes with optical elements whereby light generated by the at least an LED can have a desired pattern of distribution. The LED module is usually a plastic or ceramic material having thermal management, mechanical support, and electrical interfaces to couple to the load side of a current source which is typically a LED driver. In many applications, one or more LED chips or packages are mounted within an LED module, which may make up part of a lighting unit. Power source and ANSI standard base are not integrated into module which means it cannot be connected directly to the branch circuit.