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.
User’s guide: https://www.connectsmarthome.com.au/guides/lights/CSH%20User%20Manual%20-%20E27%20B22.pdf
The photographs on the manufacturer website show 900 lumens, but in store the boxes say 1000 lumens.
In order to put the device into pairing mode (rapid flashing), it was necessary to use official the TuyaSmart app to reset & wipe it.