1500 watts,120 VAC, 60 Hz This energy efficient sinking deicer keeps your entire tank ice-free without overheating the water. Safe for animals, this deicer includes a durable PTFE coating for easy cleaning. The large, finned base runs cooler than conventional deicers, making it safe for plastic or metal tanks alike. The cord is wrapped in a heavy-duty anti-chew spring protector. cULus Listed.