FIG. 1 is a front perspective view of the light switch device showing my new design, it being understood that the broken lines shown are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view of the light switch device of the instant invention;

FIG. 4 is a right side elevational view of the light switch device of the instant invention;

FIG. 5 is a top elevational view of the light switch device of the instant invention; and,

FIG. 6 is a bottom elevational view of the light switch device of the instant invention.