Product Description Size: 10.5 cm in diameter Color: seven colors Material: plastic Package content: 1 piece aquarium light 1. Add more oxygen: This aquarium aerator can be connected to the air pump to create an air bubble wave effect (air pump not included). This aquarium aerator creates more air bubbles to improve oxygen supply and gas exchange. This is good for fish health. 2. IP68 Waterproof multi-color bubbler This aquarium accessory can be easily powered by an air pump (not included) of more than 4W and is connected to an air hose, creating more oxygen to keep your fish healthy. 3. Convenient to use: No more other complex instructions, plug and play, just need to connect power, can slow down the flash and change colors automatically. 4. With suction cups: Can easily fix the bubble lamp to the specified position on the bottom after it sinks to the bottom, which will not disturb or harm the fish. 5. Versatile use: The aquarium light can be submerged in water and is suitable for use in aquariums, fish tanks, fountains, etc. A rainbow pattern: