Sonoff WiFi Smart Wall Switch | Sonoff TX Series Wall Touch Switch 

Your welcome

yes, just tuch the blue light

Yes it will

Sonoff required neutral wire Tuya is good for no-neutral switch

Yes

I have the same problem would like to know is there any way to install it

it's Require Nutural Wire

There are some smart light switches and dimmers that do not require a neutral wire.

How do you install it if you only have 1 live and 1 neutral… what do you do about having a Live Out?

Having a neutral wire at the switch is a rarity in the UK most houses only have a neutral going to the light in the ceiling. You have to add a capacitor to the wiring at the light to maintain a low current to the switch or turning the light off manually will cut the power to it meaning it will need rebooting. The capacitor also stops LED bulbs from flickering when they are off. New build homes are now being fitted with neutral wires at the switch with home automation in mind.

No you can buy different model

its grounded on the metal casing on the wall

Both are same

Watch at 2:34 (i'm using a flat head screwdriver)

Thanks

Your old switch doesn't have Neutral wire so this won't work. Try Yagusmart switch

@@PLIDD Thank you

:)