Spectrum-enhanced light-emitting device

The utility model relates to a spectrum-enhanced light-emitting device, which comprises a substrate, a first light-emitting diode unit with a cavity structure, a second light-emitting diode unit and fluorescent powder colloid, the first light emitting diode unit is inversely arranged on the surface of the substrate; the second light-emitting diode unit is inversely arranged on the surface of the substrate and is positioned in the cavity of the first light-emitting diode unit; the fluorescent powder colloid covers the surface of the first light-emitting diode unit. A plurality of different light-emitting diode units are integrated in a smaller volume, so that non-uniform spatial color distribution and surface color difference caused by different positions of the diode units with different wavelengths in the bracket to different excitation positions of the fluorophor can be avoided; and finally, the single luminous body center is favorable for reducing the overall area of the packaged light source and facilitat