Gas evenly and with enough oxygen, which can be used to ignite and make oxygen for fish and also be used as aquarium decoration,12 Multicolor RGB LEDs - Add fun to your aquarium and fish tank. your baby fish Easy to use, Plug and play, Comes with a power cable, strong suction cup helps to fix the cable firmly in the tank Safety design low voltage, energy saving, ideal for aquarium, fish tank, swimming pool, pond, etc. Water-proof: Excellent sealed design for underwater work, this product is completely waterproof so it can be fully submerged in water Connect to air pump for air bubble effect, creates tons of bubbles (needs to be connected to an air pump) ventilating fresh air into your aquarium water Scope of delivery: Diving light with LED*1 Warm Tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement etc, there may be some slight differences in the color and size between the photo and the actual product. Sincerely hope you can understand! Thank you!