Operated exclusively via the FluvalSmart App on your mobile device, the Fluval Marine Nano LED is designed to help you grow brighter, more robust corals in a small saltwater aquarium. This German-engineered lamp offers super bright 25,000 K lighting, in addition to a newly designed mounting bracket with flexible positioning, a performance-enhancing IP67 waterproof rating, and wide-angle light dispersion for greater area coverage. I have at least 4 of these brand new in the box.