1、COMPACT AND CONVENIENT: This small and easy to install water heater is for your kitchen sink, bar, school or hair salon. With a vertical down inlet and up outlet style, it saves space and eliminates the need for a large water tank. 2、EFFICIENT HEATING: Thanks to its on demand heating technology and automatic power adjustment, this heater delivers an ultra fast warm up time with 98% energy efficiency, saving you money on your electricity bill. 3、SIMPLE REMOTE CONTROL: With the included remote control, you can easily adjust the temperature and switch between Fahrenheit and Celsius. Additionally, the touch display makes sure you know your temperature settings. 4、SMART FLOW ACTIVATION: Once you turn on your faucet, the heater will automatically turn on and start heating. The unit activates at a flow rate of 0.5 gallons per minute, so you don't have to worry about a slow trickle of water being too cold. 5、TEMPERATURE BY FLOW: Water flow rate and input water temperature determine the output water temperature, providing customizable temperature control. Heavy flow lower the temperature and the slow higher the temperature.