An LED module includes light sources that are disposed on a surface of a circuit substrate and each of which has LED chips and a wavelength conversion member covering the LED chips. The light sources include first light sources and second light sources. LED chips in each of the first light sources differ in number from LED chips in each of the second light sources. The circuit substrate includes a conductive pattern that is connected with the first and second light sources, and that forms each of one or more series circuits along with at least one of the first light sources and at least one of the second light sources.