★ [25 watt heater]: This Aquarium heater is suitable for 1 to 5 gallon Aquarium, with a length of -6.8 inches (about 17.3 cm), a voltage of 110-120 volts, and a power line of 4 feet (about 1.2 meters). Please select a suitable wattage Aquarium heater according to our size chart.

★ 【 Temperature range 】: 17.2 ° C~35.0 ° C, easy to adjust the temperature you need. We also provide free diving thermometers for each customer, allowing you to observe the water temperature of the fish tank at any time.

★ 【 Intelligent temperature control 】: Automatic constant temperature function. When the water temperature reaches the * temperature value, the heater will automatically stop heating. When the water temperature is below the set temperature, the heater will automatically start heating. In addition, automatic * shutdown function and overheating protection.

★ [Note]: The Aquarium heater can only be used underwater. During the heating time, the heater must be * immersed in water. Please unplug the power supply when cleaning the fish tank or changing the water in the Aquarium. 2. The heating rod is suitable for use over 16 years old. Children or minors should use it under adult guidance or supervision.

★ [Satisfaction *] Gain confidence and work together with us! Our aquarium heaters are based on durability and the flexibility of each design. If you are not satisfied with our product, please contact us and we will be happy to provide you with a new replacement aquarium heater. 12 month warranty and 24-hour professional after-sales service