Feature: 1. HD LED DUAL DISPLAY: Digital LED intelligent aquarium heating rod with HD LED dual display, large screen digital dual display, flashing tips, intuitive and convenient. 2. STRONG SUCKER BUCKLE, TEMPERATURE CONTROL: Aquarium heater with super strong suction cup snap, stable fixed heating rod; external temperature control, precise temperature control, power off from water, over temperature protection. 3. RAPID HEATING: Aquarium heater's internal steel plate stabilizes the heating, the heating material heats up quickly, fast heat conduction allows the aquarium to heat up quickly, energy saving and electricity saving. 4. UNDERWATER USE: The heating rod is completely submerged underwater, to prevent the rod body from burning, burning melting the protective shell and other situations causing unnecessary trouble. 5. UNIFORM HEATING: The heating rod heats up quickly, try to place it in the position of rapid water flow, so that the aquarium can be heated evenly. 6. SAFE AND RELIABLE: The heating rod will have a slight static electricity (below 12V) when working, which is within the safe range, please feel free to use it. 7. ECO FRIENDLY, DETACHABLE: Aquarium heater is made of environmentally friendly ABS material, does not pollute the water, removable shell, easy to disassemble, say goodbye to inconvenient cleaning. Specification: Item Type: Aquarium Heater Material: ABS Use: Aquarium Intelligent Digital Display Heater Voltage: 220V Temperature Control Range: 15℃-34℃ Suitable for Water Volume: Below 600L Suggested Aquarium Size: Approx. 120-150cm/47.2-59.1in . Package List: 1 x Heating Rod1 x Suction Cup Fixing Buckle Note: 1. Please do not bury the heating rod in the gravel and soil at the bottom of the aquarium, because the specific heat capacity of gravel and water are different, which will cause the damage of the heating rod.2. It is not recommended to put the heating rod in the bottom filter, because some bottom filter water level is not enough to submerge the rod, resulting in accidents.