NOTE!!! 1.This product is just a bubble lamp. It can only be turned on and can not be bubbling. If you want to make a bubble, you need to use it with an oxygen pump. This product does not have a gas tube or an oxygen pump. You need to purchase it separately! 2.If the air strip is clogged, use a needle to clear the hole, it is easy to operate. Package Included: 1x LED light for fish tank 1.Low power, low consumption, high quality. 2.The light bar is sealed with disposable glue, which is safe and waterproof. It can be used in water, or not in water. 3.The color highlighting lamp beads are energy-saving, durable, and long life, which is making the fish tank and fish more colorful. 4.Soft light, no harm to you and fish. 5.Multiple colors, slow flash effect, more beautiful. 6.Available in three sizes, choose the size that fits your tank. Specifications: Style: Slow Flash, AC: 100-240V DC: 12V 50/60HZ Watt: 1W, 1W, 3W,4W LED: 7, 12, 15, 18 US PlugEU/US Plug Color: Colorful Length: 15cm, 25.5cm, 35.5cm45.5cm Power Cable Length: Approx. 1.8m