Intelligent programmable Led Aquarium Light 24'' Angel-eye Best Penetration for Aquarium Tank Coral Marine Reef LPS/SPS,sunrise This aquarium Led System is designed to imitation natural sun for 24-36 reef coral and marine fish tank -21 lights + 1 smart controller+ adjustable rail kits, max 60 cover -24hours, 4 channels, 0-100%, free set & many preset mode for coral -No fan, no noise; DC power, water proof cord, best safety -Higher 32% efficiency due to smart mode& lens design