The washlet needs power for the seat warmer (and other functions). Toto (and others) also have unpowered add-on toilet seat type that just sprays and is manuall

The washlet needs power for the seat warmer (and other functions). Toto (and others) also have unpowered add-on toilet seat type that just sprays and is manually controlled with a knob. https://in.toto.com/product-category/ecowasher/ https://in.toto.com/product-category/ecowasher/ (Not sure if this is available in the US)