17 Accent LED Lighting System - 460nm Blue. Fully Submersible LED lighting system. Marineland's latest innovation brings the light to the inside of the aquarium. Perfect for adding additional light to show off aquatic plants, corals or amazing fish. Exclusive in-frame mounting allows the observer to see the light without seeing the fixture and the integrated cord routing helps to complete the illusion. The directional adjustment dial gives the aquarist the ability to shine the light where they want it. Includes suction cups to allow endless possibilities on how to use the system.