Function: 1. Ni-Cr heating wire fast heat conduction, stable, energy-saving, durable, not affected by magnetism. 2. Automatic intelligent constant temperature. 20-34 cycle temperature control, convenient and fast. 3. Using 23mm outer diameter thickened quartz tube, heating speed is faster, heat resistance, more stable anti-explosion. 4. Selected silicon carbide layer body, stable thermal conductivity. HD LED control display, real-time monitoring of aquarium status. 5. High safety factor, providing over temperature alarm, low temperature alarm, sensor failure display and overheating protection. Specification : Item Type: Aquarium Heating Rod Material: ABS quartz glass tube Color: as shown in the pictures Plug model: 220-240v EU plug Size: Approx. 29x5.5x4cm/11.4x2.2x1.6in Temperature control range: 20 -34 How to use: 1. When the power is off, put the heating rod body into the water, and the whole body is completely submerged in the water, connect the power and set the temperature. 2. Adjust the position, put the heating rod as far as possible into the water circulation position, so that the heat of the heating element can circulate in the water in the tank. 3. It is forbidden to put the heating rod body into the sand or mud at the bottom of the cylinder to avoid unnecessary trouble caused by burning the rod body. 4. Because the induction device for draining water and power off is in the upper half of the heating rod, it is forbidden to install the rod body upside down, with the head down and the heating element up, to avoid water shortage, the heating element will be exposed in the water, and heating will damage it. 5. The temperature setting button in the center of the power cord must be exposed to water and be careful not to damage it by water ingress. Package List: 1 x Aquarium Heating Rod 2 x Suction Cup 1 x User Manual