Features 1、Color Change and Oxygenation: USB plug, colorful and automatic color change, can be used to increase oxygen when connected to an aeration pump. 2、Unique Design: The newly designed powerful suction cup, easy to install, can work well in wet and dry places. 3、Led Lamp Beads: Using super bright led luminous beads, high luminous efficiency, energy saving and environmental protection, low heat. 4、High Quality Material: The bubble lamp is made of high quality plastic, sturdy and durable, and has a long service life. 5、Wide Application Range: The fish tank bubble lamp is suitable for aquariums, fish tanks, vases, waterfalls or decorative lights. Specifications: Item Type: Fish Tank Bubble Light Material: Plastic Power Supply Mode: USB Diameter: Approx. 4.3cm/1.7in Number of Lamp Beads: 7 Light Color: Gradient Color Package List 1 x Bubble Light