Strip-shaped RGBCW five-color constant-voltage COB light source

The utility model relates to the technical field of COB light sources, and discloses a strip-shaped RGBCW five-color constant-voltage COB light source which comprises an aluminum substrate. The aluminum substrate is provided with a plurality of power input bonding pads, a plurality of diode bonding pads, a plurality of red light negative electrode bonding pads, a plurality of green light negative electrode bonding pads, a plurality of blue light negative electrode bonding pads, a plurality of warm light negative electrode bonding pads, a plurality of cold light negative electrode bonding pads and a plurality of light-emitting chip bonding pads which are connected in sequence, and a plurality of light-emitting chip groups are welded on the light-emitting chip bonding pads. The diode bonding pad is electrically connected with the power input bonding pad and the light-emitting chip bonding pad. The red light negative electrode bonding pad, the green light negative electrode bonding pad, the blue light negative e