ILLUMINATION DEVICE

摘要

An illumination device (1) includes: a voltage supply unit for supplying a voltage and a plurality of solid-state light emitting elements (31) emitting light by voltage supplied from the voltage supply unit. The solid-state light emitting elements (31) are connected in series, to which a voltage supplied from the voltage supply unit is applied. The supply voltage is set to such a voltage that current flowing in each of the solid-state light emitting elements (31) is not greater than 1/N (N is a number not smaller than 2) of the maximum rated current.