How to flush during a power outage?

Tankless smart toilets are equipped with an emergency battery box that supports flushing during a power outage by pressing a button on the side of the toilet.

How to turn on/off the automatic flushing function when leaving the seat?

The automatic flushing function is turned on by default. If you need to adjust the settings in special circumstances, please contact customer service

Does this toilet have an automatic lid opening function?

No it doesn't. It comes with the manual lid and seat ring that has silent and slow-down lid closing device

What is the height of the seat with the seat down?

The seat height of the seat with the seat down is around 16.92 inches.

do you have to buy an adapter for the angle stop valve to sweat on the copper pipe

do you have to buy an adapter for the angle stop valve to sweat on the copper pipe---No, you don't. You can put it directly on the flange ring we provided and press it tightly.

What are the power draw/needs?

Voltage: 110V-120V Includes remote control, operates on 2 AAA batteries(not included).

Does this model have a night light?

Yes, it has a light sensor that turns on a light that goes away when you turn the room light on.

Can you recommend a sink faucet that has the same style?

Yes, please have a look at this link : https://www.homary.com/item/modern-single-hole-1handle-cshaped-curved-spout-bathroom-sink-faucet-with-pop-up-drain-in-matte-black-12903.html