Advanced Design.Double seal material.Ensuring safe operation.Automatic adjustment temperatures.Advantages: Intelligent and electronic chip and use of good sensors ensure the output of heat exactly that is fit for water being heated.Completely submersible.New generation solid state electronics heralds a new era in reliability.Specifications:Model: RS. Power: 300 W. Voltage: 220 V-240 V. Frequency: 50 Hz-60 Hz.Package Included: 1 x Aquarium Heater.