Abstract: A currently-available white LED can be modified to freely set a color temperature as well as to improve a color rendering property. A correction-color LED or LEDs having a peak wavelength in a specific wavelength region in association with a white LED are provided to make a color temperature-regulable LED which permit the correction of not only a color temperature but also a color rendering property by means of color-mixture of the correction-color LED and the white LED considering the color temperature and a spectrum distribution of the white LED. The color temperature-regulable LED is especially useful as an shadowless operating light, a living room light and a decorative light.