1、 The temperature can be adjusted from 20 degrees to 34 degrees. 2、 Convenient installation, simple operation, high temperature resistance, explosion-proof glass tube, high safety! 3、 Sensitive temperature regulator and over-temperature protection device are installed in the rod, and high-resistance heating wire is used, which generates uniform and stable heating and long service life. 4、 Good heat resistance, good insulation, high heat conduction efficiency, with strong support hooks and parking suction cups, making it more stable and reliable. 5、 Double-layer waterproof protection, full submersible design, can accurately maintain the set temperature. 6、6. The maximum immersion depth of 120CM can work. This product is only suitable for use in fresh water and sea water. 1*Aquarium Heater   Voltage: 220-240V Frequency: 50HZ-60HZ Work rate: 50W Temperature control range: 20℃-34℃ Size: 20.5*3cm Power cord length: 80cm Material: glass