That is the hot: Without water preheating. How much water, how much electricity. 't have to repeatedly heat insulation, waste not Constant temperature water: Take a comfortable shower. Fast heating, thermal core temperature continue to supply you , refused to hot and cold 5500 w power 88% of the output rate of hot water: Strengthen the stainless steel heater, water to the hot, continuous supply of hot water Time the temperature display: With more peace of mind. Temperature display for real-time dynamic visible when using temperature is more at ease Water and electricity separate. Security is a kind of responsibility. Internal electric protection wall design hydropower is not same, prevent water leakage Style: vertical Maximum volume: 300mL Energy efficiency class: III Heating power (KW): 2.1kW (included) - 5kW (excluded) Installation requires proper grounding and mobile socket is prohibited Heating power: 5500 Net weight: 1.4 (KG) Control mode: Mechanical Appearance size 21 x 11 x 27cm Whether the faucet can rotate Tap style single handle single hole Plug Type:EU Plug,it applies to Indonesia, , , , and so on Voltage: AC220V color:White :ABS+stainless steel Package Contents: 1 x water heater 1 x water flow regulating valve 1 x isolation wall 1 x water inlet hose 1 x tee 1 x installation-free perforated sticker 1 x leakage protection switch 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.