FIG. 1 is a front perspective view of a power failure warning light showing our new design;

FIG. 2 is a front elevational view thereof on an enlarged scale;

FIG. 3 is a top plan view thereof on an enlarged scale;

FIG. 4 is a bottom plan view thereof on an enlarged scale;

FIG. 5 is a left side elevational view thereof on an enlarged scale;

FIG. 6 is a right side elevational view thereof on an enlarged scale;

FIG. 7 is a rear elevational view thereof on an enlarged scale;

FIG. 8 is a fragmentary cross-sectional view thereof taken along line 8--8 of FIG. 2.