Features: 1.Built-in precision temperature sensing probe, precise constant temperature real time monitoring environment temperature, exceed alarm temperature immediately stop heating, start system protection. 2.Adopts nickel bell heating wire with better thermal conductivity, heating speed is faster and more stable, outside adopts quartz explosion-proof glass, makes quick heating more safe. 3.LED large digital display screen, actual temperature at a glance real time understanding of the water temperature changes in the cylinder. 4.All sealed cans glue insulation to prevent electric leakage danger. 5.Made of high quality ABS material, sturdy, durable and long service life. Specification: Item Type: Heating Rod Model: K-50 Material: ABS Color: As Pictures Shown Quantity: 1PCS Optional Rated Power: 25W, 50W, 75W, 100W Temperature Control Range: 17 DegreeC-34 DegreeC Light Touching Temperature Control Heating Rod, Accuracy ±1 DegreeC Plug: CN Plug Voltage: 220-240V Weight: Approx. 230g 25W Suitable for 5-15L Fish Tanks 50W Suitable for 15-30L Fish Tanks 75W Suitable for 30-45L Fish Tanks 100W Suitable for 45-75L Fish Tanks Size: Approx. 9x7cm/3.54x2.76inch Cable Length: Approx. 1.2m/3.94ft PackageList: 1 x Fish Tanks Heating Rod Note： The system will automatically match the corresponding plug according to the receiving country of the guest.