Tabletop spa therapy. Electronic element pumps the water while four LED lights rotate to create a hypnotic change of colors. Modular glass shelves stack in a pyramid shape to create a symmetrical cascade of flowing water. Sculpted vase reflects a river-worn pattern to complement the natural look of an exotic waterfall. UL approved adapter safely converts 110 Volt power to a low 24 VAC from standard wall socket. Distilled water recommended for best performance.