To provide a lighting device capable of surely preventing an operation of an explosion-proof valve of an aluminum electrolytic capacitor used for a long period at low cost and preventing generation of displeased feeling in advance.

The lighting device 2 includes a report means 11 for reporting life of the aluminum electrolytic capacitor C, and a control means (a control circuit 10) for making the report means 11 operate when arriving at a predesignated time wherein its used time does not reach the life time of the aluminum electrolytic capacitor C by summing up the used time of the aluminum electrolytic capacitor according to lighting-up of an illumination lamp (a main lighting fixture 3).