Model reference: SAA-192507-EA
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.
Generic smart plug from Reject Shop. Advertises Tuya Smart app.
Hold down the switch for ~8 seconds to get in to pairing mode
If tuya-convert doesn’t work there are serial pins inside. Uses a RCmall ESP8266-3 module.