FIG. 1 is a top, right, front perspective view of a flashlight lens of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof, the rear view consisting of nonornamental features;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing is for illustrative purposes only and forms no part of the claimed design.