Energy-efficient, multi-color LED lighting,Makes great night light for wonderful nocturnal viewing, produces a impressive air bubbles for improved oxygenation , Build in air stone, working with air pump, the lighting make the bubble beautiful. Self-weighted, quick assemble and install in your aquarium, suitable for fresh and saltwater aquarium. Strong suction cup, can fix anywhere you want. Use low voltage DC 12V working voltage, safe and won't cause any harm to people or fish. There are 7 auto different colors changing and you don't need to change them by yourself. IP68 water resistant,can be fully submerged in water. will add vibrancy and movement to almost any aquarium.