Why physical stores do not sell electric faucets

The general hardware store nearby sells them.

1, open and hot, no need to preheat, 1 second instant hot water, hot and cold dual-use, convenient and fast.

2, with the use of heat, with how much heating, unlimited supply of hot water, really save electricity, water and time.

3, alternative to traditional faucets, where there is water and electricity, connected to the power supply can be used.

4, alternative to traditional water heaters, goodbye to the crude storage tank and slow heating wait, make bathing more convenient.