48'' / 96'' Fixture Aquarium LED Light Programmable 4 Channels Dimmable Saltwater Marine Fish Coral Reef Tank Light This aquarium Led System is designed to imitation natural sun for 48-60 reef coral and marine fish tank -4*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