Fluorescent light bulb

FIG. 1 is a front and top perspective view of a fluorescent light bulb showing my new design in full lines with the broken line showing of environmental association matter being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front elevational view thereof shown in full lines, and the environmental matter shown in broken lines;

FIG. 3 is a right side elevational view thereof shown in full lines, and the environmental matter shown in broken lines;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof shown in full lines, and the environmental matter shown in broken lines;

FIG. 6 is a rear elevational view thereof shown in full lines, and the environmental matter shown in broken lines; and,

FIG. 7 is a bottom plan view thereof.