<p>Provided is a lighting device which can be dimmed and subjected to change in color temperature of the color of emitted light in accordance with a dimming level. To the lighting device, alternating-current power that is phase-controlled is supplied. The lighting device is provided with a light-emitting-part array and a switching means. The light-emitting-part array is constituted of a plurality of light-emitting parts, which are two or more kinds of light-emitting parts having different colors of emitted light. The switching means switches an electrical connection relationship between the light-emitting parts included in the light-emitting-part array so as to change a ratio between the number of light-emitting parts inserted in series to an electrical power supply channel and the number of light-emitting parts included therein for each color of emitted light in accordance with a voltage supplied to the light-emitting-part array.</p>
