The application discloses a light-emitting device including a carrier which includes an insulating layer, an upper conductive layer formed on the insulating layer, a plurality of conducting vias passing through the insulating layer, and a lower conductive layer formed under the insulating layer; four light-emitting elements arranged in rows and columns flipped on the carrier; and a light-passing unit formed on the carrier and covering the four light-emitting elements; wherein each of the light-emitting elements including a first light-emitting bare die emitting a first dominant wavelength, a second light-emitting bare die emitting a second dominant wavelength, and a third light-emitting bare die emitting a third dominant wavelength; and wherein two adjacent first light-emitting bare die in a row has a first distance W1, two adjacent first light-emitting bare die in a column has a second distance W2, and W1 is the same as W2.