As shown in FIG. 8B, in the present embodiment, the conductive electrodes 110, 112 are located between the highest point and the lowest point of the LED filament 100 in the Z direction. The highest point is located at the highest first conductive section 130 in the Z direction, and the lowest point is located at the lowest second conductive section 130′ in the Z direction. The lower second conductive section 130′ and the higher first conductive section 130 are defined with the conductive electrodes 110, 112 as being close to or away from the bulb base 16. Referring to FIG. 8B, in the YZ plane, the positions of the conductive electrodes 110, 112 may constitute a line LA showing with dotted line, there are two first conductive sections 130 above the line LA, and one second conductive sections 130′ below the line LA. In other words, in the Z direction, the number of the first conductive sections 130 positioned above the line LA to which the conductive electrodes 110, 112 are connected may be one more than the number of the second conductive section 130′ positioned below the line LA. It is also contemplated that relative to the conductive electrodes 110, 112 as a whole, the number of the first conductive sections 130 away from the bulb base 16 is one more than the number of the second conductive section 130′ near the bulb base 16. Further, if the LED filament 100 is projected on the YZ plane (refer to FIG. 8B), the line LA connected by the conductive electrodes 110, 112 has at least one intersection with the projection of the LED sections 102, 104. In the YZ plane, the lines LA connected by the conductive electrodes 110, 112 respectively intersect the projections of the two LED sections 104, so that the line LA and the projection of the adjacent two LED sections 104 have two intersections.
