Illumination device

摘要

[Object] To provide an illumination device able to control a power consumption amount of a light source in accordance with the season. [Means for Settlement] A solar generation part 1 for generating electric power by receiving sunlight; a battery 2 for storing the electric power generated by the solar generation part 1; a light source 6 for being lighted with use of the battery 2 as a power source; a human-sensing device 4 for detecting a human; a human judgment part 51 for judging existence and non-existence of the human on the basis of the detection result of the human-sensing device 4; a season judgment part 53 for judging a present season; and a lighting control part 52 for lighting the light source 6 at a predetermined dimming rate D1 during a lighting retention time T3 in the case where the human judgment part 51 judges the existence of the human are included, and the lighting control part 52 reduces a power consumption amount of the light source 6 in the winter to be smaller than a power consumption amount of the light source 6 in the summer on the basis of the season judged by the season judgment part 53.