Tuya-Convert might not be possible for this device if the manufacturer started using newest Tuya firmware since this template was published. Instead you can likely serial flash Tasmota without soldering with a flashing jig, if the device is easily opened.
A TuyaMCU based dimmer switch with power monitoring.
As at May 2020, readily flash-able using tuya-convert. Best not to connect to the device in advance with a Tuya app to avoid flashing new firmware.
After configuring your WiFi details and configuring the template, use the console to issue the following commands :
Backlog TuyaMCU 21,2; TuyaMCU 33,6; TuyaMCU 31,5; TuyaMCU 32,4; DimmerRange 1,24
If that doesn’t work try following instructions at https://tasmota.github.io/docs/TuyaMCU/