72 Aquarium LED Light 4 Channels Bright Lunar Saltwater Tropical Fish Tank 180cm, Programmable 6ft Aquarium Lamp Lighting Moon by DSunY This aquarium Led System is designed to imitation natural sun for 72 reef coral and marine fish tank -2 x 36 light + 1 smart controller, total cover the tank, no tiny shadow, no fan, no noise; DC power, water proof cord, best safety -24hours, 4 channels, 0-100%, free set & many preset mode for coral, Beam Angle of Lenses: 120 degree; Optical power: equal 120 Wattage, -Power consumption: 0.8KWH/day, Max 90 Wattage, Higher 32% efficiency due to smart mode& lens design -Shipping by DHL, FedEx or UPS, Shipping time is 5-7 business days, safe and fast.