FIG. 1 is a front view of a hanging LED light showing my new design; FIG. 2 is a rear view of a hanging LED light thereof; FIG. 3 is a left side view of a hanging LED light thereof; FIG. 4 is a right side view of a hanging LED light thereof; FIG. 5 is a top view of a hanging LED light thereof; and, FIG. 6 is a bottom view of a hanging LED light thereof. The broken line disclosure represents portions of the light which form no part of the claimed design.