Base for a Lighting Device

FIG. 1 is an isometric view of a top, front, and left side of an ornamental design for a base for a lighting device;

FIG. 2 is an isometric view of a top, rear, and right side of the base of FIG. 1 ; and,

FIG. 3 is a top plan view of the base of FIG. 1 .

The dash-dash-dash lines are included for the purpose of illustrating portions of the base for a lighting device that form no part of the claimed design. The dash-dot-dash lines are included for the purpose of illustrating boundary lines and form no part of the claimed design.