GAM AquaGlow Rainbow Fountain Enjoy the magic of shooting streams of continually changing color-lit water with the AquaGlow™ Rainbow Fountain™. Powered entirely by water, this innovative lighting accessory adds a mesmerizing touch to your pool, pond or spa without the need for batteries or electrical power. Just plug it into a garden hose or pool pump return and let the show begin. Lights continually fade from blue to green, green to red and red to blue for a beautiful display of lighting effects. Try this backyard lighting product and see how colorful your backyard can be.