NEPTUNE SKY LED Reef Aquarium Light | Premium Aquatics. The SKY is a 200w, LED aquarium light, with patented diffuser technology, that smoothly blends all of its 104 LEDs to create a homogeneous field of coral-health-optimized light no hotspots, no disco-ball effect, no need to augment it with other lights or add-on diffusers but best of all, none of the harsh shadowing and fractured spectrum found in most other popular lights. The SKY brings to your aquarium that blanket of natural and life-sustaining light that nourishes earths coral reefs, but with the look reefers desire. WIRED OR WIRELESS – YOU CHOOSE! Connects easily to your Apex with an AquaBus connection OR wirelessly to your Apple or Android mobile device. COVERAGE: Covers 24 X 30in. FOR SPS, MORE FOR OTHER CORALS. UV LED GIVE THAT EXTRA POP. ADVANCED THERMAL MANAGEMENT SYSTEM – The SKY has a robust thermal management system that not only keeps it cool, its lower operating temperature extends the lifetime output of the LED as well as the lifetime of the fixture itself.