LED Aquarium Fish Tank Air Stone Light,Multi-Color

LED Aquarium Fish Tank Air Stone Light,Multi-Colored Bubble Disk for Fish Product description Specification: LED color:Multicolor Voltage: 100-240V Output: 12v Waterproof Rate: IP68 Features: 6 Multi-Colored RGB LEDs and an airstone combined in a single decor piece. Built-in air stones create air bubbles for improved oxygenation and gas exchange. This fish tank air stone is IP68 waterproof rate, excellent sealed design, can be fully submerged in water. Fully submersible Color-Changing LED Bubble Ring features a built-in airstone and special anchoring flaps to secure unit in place. Package Include: 1*LED Round Bubble Light with UK Standard Plug 1*Air Tube 1*User Manual How to use it? - Please put the item into water to soak for 15-20 minutes before you connected it to the air pump, so that bubbles can emit alll around.(Bubble will be even after air disk working underwater for 40 minutes). - Use the suction cups to secure the air stone disk in place, or set it on the aquarium floor and cover it with gravel. - Connect the plug to outlet and create a drip loop to prevent water from traveling along the cord and contacting the plug. PS: If the bubbles did not come out of whole circle and only coming out one side of the disk, your should sure the pump you use has enough power to work it.