★ This product is totally waterproof so that it can be completely submersed in the water. ★ Made of high-grade material, which is non-toxic, safe, energy-saving and eco-friendly. ★ The Plate Stone is well-distributed, with evenly bubble outle, can be used to light for fish and also be used as a decoration for your aquarium.( air pump not included ) ★ The light effects are so bright and you can view the fishes at the tank clearly and give you a totally different vision. ★ There are strong suction cups at the bottom of the light, which will help you fix the light in the tank.