Light-emitting diode (LED) light source

The invention discloses a light-emitting diode (LED) light source and a LED light source module formed by a plurality of LED light sources. The LED light source comprises a LED lighting body and a reflector, wherein the reflector is a side wall closed cavity. The structural mode of the LED light source is: a C0-180 section cutaway view outline is a curvilinearfigure outline with the center being the highest point and gradually reducing the height toward the left side and the right side. The C0-180 section cutaway view outline is symmetrical on the left and the right. A C90-270 section cutaway view outline is a curve type outline with the left side or the right side being the highest point and gradually reducing the height toward the other side or first reducing and then heightening. The C90-270 section cutaway view outline is unsymmetrical on the left and the right. A horizontal cross section cutaway view outline of the reflector is a closed curve, and the closed curve is provided with a section or multiple sections of cove arc lines. The LED light source can achieve a plurality of unsymmetrical light distribution, and improves lighting light flux use ratio.