It heats water instantly, work great with AC 110V ~ 120V. You will never run out of hot water, everyone gets a hot shower.
You can also adjust the water temperature by adding more or less water to get the exact temperature you choose.
The shower head built-in an automatic on/off sensor, it will work when the water is running and it will off when turned off the water.
The shower head comes with 3 different temperature settings, Off = Cold Water, Medium: Warm = 4500 Watts, High: Hot = 5500 Watts.
Perfect for pool side hot water shower rinse offs, also great for cabins where you don't need a hot water heater plus all the extra piping.