Ⅰ. 3000W Electric Water Heater Boiler Water Heater Portable Heating Rod Fast Boiling Water Immersion Hanging Bathtub Basin Product Type Immersion Electric Water Heater Rated Voltage 220V/50Hz Rated Power 3000W Heating Tube Length 25cm Power Cord Length 160 Temperature Control Yes Maximum Temperature 75 Heating Speed Depends on Water Volume and Air Ⅱ. How to Use Heating Tube Immersion Scope of Use Bathtub, Bucket, Small Pool Ⅲ. Reminder: Dry Burning of the Heater is Prohibited Before Use: Put the Whole Tube in the Water and Turn on the Power. Ⅳ. Usage: First Disconnect the Power, Then Remove the Heating Body and Put the Whole Tube in the Water When Using it Ⅴ. Temperature Control, Safe and Reliable When the Water Temperature Reaches 70, It Will Automatically Stop Heating When the Water Temperature is Lower than 50, The Heater Will Automatically Turn on. Ⅵ. The indicator light will light up during heating and go out when heating is stopped.