High quality material: The heater is made of explosion-proof quartz glass material, which is shatterproof and explosion-proof* The design of the rear protective heater cover is thicker and more compact, heat-resistant, and can protect your small fish from *.

[Fully submersible Aquarium heater] - voltage 110 V/60 Hz, power 300 W, length of heating rod 9.45 inches (about 24.0 cm), suitable for 26-53 gallons (about 67.9-144.9 liters) of Aquarium/fish/fighter tank. The controller power cord is 4 feet (approximately 1.2 meters), the heater power cord is 5 feet (approximately 1.5 meters), and the temperature control range is 68 to 90 degrees Fahrenheit (approximately 1.8 to 33.9 degrees Celsius).

External temperature controller with dual temperature display - With dual LED digital display, you can simultaneously observe the water temperature and set the temperature of fresh water or seawater. The external temperature controller provides you with more convenient and reliable external temperature adjustment settings.

【 Intelligent heating and overheating built-in 】 - When the water temperature is below the set temperature, the fish heater starts working until the water temperature reaches the set temperature. It can always provide a stable water temperature for your beloved fish. Over temperature protection: When the water temperature exceeds 99 degrees Fahrenheit, HHH is displayed and forced to stop heating.

【 Precautions for Use 】 -1. The fish tank heater must be completely immersed in water before turning on. When the heater is not in water, remember that it cannot be powered. 2. For the sake of your fish *, you * should install a Aquarium heater near the air pump or a place with strong water flow to keep the whole Aquarium at the same temperature