Description: The temperature can be adjusted from 20 degrees to 34 degrees. Convenient installation, simple operation, high temperature resistance, -proof glass tube, high safety! Sensitive temperature regulator -temperature protection device are installed in the rod. The high-resistance heating wire is used to produce even and stable heating and long service life. resistance, good insulation, high heat conduction efficiency, equipped with strong support hooks and parking suction cups, making its work more stable and reliable. Double-layer waterproof protection, full submersible design, can accurately maintain the set temperature. The maximum immersion can work under the environment of 120cm water depth, this product is only suitable for use water and sea water. Specification: Voltage: Frequency: 50HZ-60HZ Plug: US Plug Power: 25W/50W/100W/200W Product Length: Approx.20.5cm/8.07inch Cable Length: Approx.80cm/31.50inch Package Includes: 1 Set Aquarium Heater