Amzdeal RGB Slow Color Changing LED Aquarium Light Bar Submersible Light Lamp LED Aquarium Light Bar Strip for Aquarium Fish Tank Flood Lights (24 INCH) All RGB colors fade out & fade in every 2-4 seconds, very slow and smooth color changing Adds a whole new decorative dimension to any aquarium Great night light for wonderful nocturnal viewing Produces a impressive RGB colors air curtain Utilizes low wattage LED lamps, comes with a low voltage transformer. Self-weighted, easy to assemble and install