This beautifully designed Red Auto Feeder contains a smart micro-computer that is programmed to feed every 3 4 6 8 12 24 or 48 hours. With this non-battery operated unit you will never have to worry about your fish dying from feeders run solely on batteries that diminish in power and rust from aquarium humidity. Suitable for a variety of food (pellets flakes or freeze dried treats) this feeder contains a special food drum that heats the food to keep it dry and prevent clogging. It offers a function to sense darkness and avoid night time feeding and is designed for long term use. Our Auto Feeders have a beautiful metallic shine finish. Specification: Input: Indicated on label Output: AC 9 V 300 mA Heater Wattage: 1 W Luminous Sensor: Cds Color - Red Dimension - 6 x 4 x 3 in. Item weight - 0.6 lbs.