Automatic Sensor Touchless Sink Faucet with Deck Plate, Chrome Vanity Faucets, Hands Free DSAT620CHThere is a built in mixing valve that is in the control box under the sink . You can easy to set the water temperature from there, according to your preference. There is a built in mixing valve that is in the control box under the sink . You can easy to set the water temperature from there, according to your preference. Sensor faucet, with honeycomb foaming device, makes full use of the anti splashing function of the water outlet nozzle, more