Tuya WiFi Smart Dimmer Switch Module 2 Way Control Dimmable App Wireless Remote Control Works With Alexa Google Home

if you use tuya integration with home assistant you need to use zigbee2mqtt as tuya do not change brightness via home assistant

What should I do to manually operate the dimmer instead of using it through the SmartLife application?

I suggest you purchase a reset switch with three buttons, one button for the "on/off", one button for the "+", and one button for the "-".

Feature:

Dimmable Bulb Only

This smart dimmer switch only supprt dimmable LED AND INC.
Please confirm your bulb's specification before placing order.

[APP Remote Control] Download smart life /Tuya smart APP on your phone&Tablet to control the dimmer module anywhere/anytime.

[Hand Free Voice Control] Compatible with amazon alexa echo ,google home ect ,a simply command to voice control the module.

[Family Share Function]You can share the switch to your family with the limited right,create a smart home together with your family member.

[Linkage Function] It can linkage with other switch module ,sensor and appliance in your home ,make create different scene possible,such as sleeping mode,working mode,dinner mode ,back home mode ect.

[Timer,Schedule&Count Down Function]You can create schedule according to your personal requirement ,as well as Timer,count down function,smart and DIY your daily life to the maximum extend.

[Group-Control Function]Multi dimmer switch in different room can set in a group ,realize group control function.

[Easy to Install] Mini size dimmer switch module can be installed in switch box or in lamp box easily.

SPECIFICATION:

Product type: 1CH Wi-Fi Dimmer Module
Rated Voltage: 100~240V 50/60Hz
Operation frequency:2.412GHz-2.484GHz
Protocol: WIFI IEEE 802.11b/g/n