Delta Lenta Single Handle Pull Down Kitchen FaucetTouch it on. Touch it off. Whether you have two full hands or 10 messy fingers, Delta Touch2O Technology helps keep your kitchen faucet clean, even when your hands aren't. A simple touch anywhere on the spout or handle with your wrist or forearm activates the flow of water at the temperature where your handle is set. The Delta TempSense LED light changes color to alert you to the water's temperature and eliminates any possible surprises or discomfort.