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 earth’s 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.