BrilliantSmart D350W Dimmer Module (20967)
BrilliantSmart D350W
GPIO #Component
GPIO00 User
GPIO01 Tuya Tx
GPIO02 User
GPIO03 Tuya Rx
GPIO04 User
GPIO05 User
GPIO09 None
GPIO10 None
GPIO12 User
GPIO13 None
GPIO14 User
GPIO15 None
GPIO16 User
Configuration (old format, will be converted to new template when applied)

The following mappings are required

TuyaMCU 11,1
TuyaMCU 21,2

and dimmer limits

DimmerRange 1,255

Worked fine with a 60 Watt resistive bulb. It meant to work with LED, but did flicker with a single 13 Watt load. Might meant a larger load.

Edit: Ordered 2x from Lighting Illusions (AU) in 08/2020 and both came with newer version of tuya firmware.
Attempted physical flash but GPIO-0 is not accessible due to the TYWE2S being sandwiched back to back with the adjacent PCB.
Destroyed both boards attempting to work around. Not recommended :(