24 Inch Orphek Power Reef PR156 LED Light Fixture - Designed with resistant stainless steel with a corsica coating and acrylic materials. The Orphek lighting system gives enough PAR output to keep SPS on the bottom of a 48 inch deep reef aquarium, this is the first (and only) full spectrum LED light designed for reef hobbyists, with deeper reef tanks, where previously 250 watt or 400 watt metal halides were the only lighting options available...