Smart faucet / faucet

Smart faucet Is a kind of intelligent faucet with new ways to achieve water saving.There are some sensors in the faucet.By adjusting the switch up and down,we can change the size of the light ring.Different sizes of light rings in the
container would be at a different level,and the water will stop when it reach the level where the light ring is.So you can do something else when you are taking water.Saving time,saving water.