{"NAME":"RF-SR40-US","GPIO":[158,0,0,17,56,18,0,0,22,21,57,23,0],"FLAG":0,"BASE":18}

Tuya-Convert might not be possible for this device since the template was added (2020-02-13). All new Tuya devices have firmware preventing flash but it is still possible to Tuya-Convert old stock devices without connecting them to the Tuya app.

NOTICE!!! Manufacturer has started using unsupported non-ESP8266 chips recently and this device might not be compatible anymore. Check seller descriptions or contact them before buying!

You will also have to add the following commands in the console to make this work properly.

Backlog SerialLog 0; PowerOnState 0; SetOption63 1; LEDState 1
Rule1 ON System#Boot DO Power3 On ENDON    # Turn the USB port on
Rule1 1

The model purchased from Amazon 2020-03 has this GPIO Mapping

GPIO0: Green Center LED inverted
GPIO3: Top Button
GPIO4: Amber Top LED inverted
GPIO5: Bottom Button
GPIO12: Bottom Outlet Relay
GPIO13: Top Outlet Relay
GPIO14: Amber Bottom LED inverted
GPIO15: USB Relay