Shunyou 51cm Color Changing LED Aquarium Light Fish Tank Light Submersible Light with Air Bubble Line You can choose 16 different colors and various light color changing modes by using the IR remote. A 51CM (20") long led strip and airstone combination that adds a whole new decorative dimension to any aquarium. Leds fully illuminate the air cutian, producing the impressive wall of bubbles Each unit use a low wattage led lamps and low voltage transformer. Completely Waterproof