Referring to FIGS. 9A to 9D, FIG. 9A is a perspective diagram of an LED light bulb 40g according to an embodiment of the present invention, and FIGS. 9B to 9D are respectively side view, another side view, and top view of the FIG. 9A. In the present embodiment, the LED light bulb 40g includes a lamp housing 12, a bulb base 16 connected to the lamp housing 12, a stem 19, a stand 19a, and a single LED filament 100. The LED filament 100 includes two conductive electrodes 110, 112 disposed at two ends, a plurality of LED sections 102, 104 and a plurality of first and second conductive sections 130, 130′. Moreover, the LED light bulb 40g and a single LED filament 100 disposed in the LED light bulb 40g can refer to related descriptions of the previous embodiments, wherein the same or similar components and the connection relationship between components is no longer detailed.