The Aqueon Submersible Aquarium Heater is a reliable and durable heater that is perfect for keeping your aquarium warm. With a detachable Type-C cable, it is easy to set up and store. The heater is made of shatter-resistant glass and features an LED light that turns on when the aquarium water is being heated. The heater also has an electronic thermostat that stops the heating once the set temperature is reached. The precise temperature setting can be adjusted to 68-88 degrees Fahrenheit.