Suitable for fresh and salt water fish, this complete light set will totally enhance your aquarium. The light is fully submersible, therefore it can be placed in any area of the aquarium. Simply suction the LED inside the canopy above the water surface or on the outside of your aquarium which will create a beam of light causing a shimmering effect on the water or submerge for a diffused light effect. This set comes with one white light onlyand a power adapter. Hubs for connecting multiple lights sold separately. Red, blue and green lights can also be bought separately.