Double-color-temperature front-mounted COB (Chip On Board) light source

The utility model relates to the technical field of intelligent lighting, and particularly discloses a double-color-temperature forward-installed COB light source which comprises a COB substrate which is provided with a warm light positive electrode bonding pad, a cold light positive electrode bonding pad, a warm light negative electrode bonding pad, a cold light negative electrode bonding pad, a plurality of warm light chipsets connected in sequence and a plurality of cold light chipsets connected in sequence. The warm light chip set is electrically connected with the warm light positive electrode pad and the warm light negative electrode pad, and the cold light chip set is electrically connected with the cold light positive electrode pad and the cold light negative electrode pad. According to the utility model, the unique circuit layout is adopted, and the chips are uniformly arranged in a mosaic manner, so that light spots emitted by the lens are uniform and are not mixed in color, the yellow and green con