PROBLEM TO BE SOLVED: To provide a lighting device which uses a lighting device that has been installed to radiate illumination light to a given location.SOLUTION: A lighting device includes: a body part 10 having a power reception part (a mouth piece 11) attached to an electric power supply part for lighting and a power circuit 12 for converting electric power received by the power reception part into predetermined electric power; a power supply part (a power supply wire 20) which may be pulled out from the body part 10 to a given position; and a light source part 30 which receives the predetermined electric power supplied through the power supply part to emit light and is installed at the power supply part.SELECTED DRAWING: Figure 1
