The color of the light source can be changed by creating a plurality of color bands of the lamp tube, or the light source can not display one of the color bands The visible light of color.本創作係提供一種可顯示多波段光源燈,係包含可發射出不可見光之一燈管,其特徵在於該燈管之管壁更設有具預定波段或顏色之若干濾光層;藉此,該燈管產生之不可見光透過濾光層後可改變為具預定波段或顏色之可見光,使該多波段光源燈可產生數種波段或顏色之可見光。