https://www.aliexpress.com/item/1005005042523....order_list.order_list_main.46.bc8318020Qeplf
Bought these from AliExpress for use in Australia.
Have flashed with the latest OBK firmware and configured as shown.
Switches have a dull red backlight when off which swaps to a blue on indicator.
Have configured WiFi LED to be off when connected, is a bright blue LED, brighter than the switch indicator lights.
Clip-on glass front panel that covers the sense board which includes a CB3S.
High voltage is by a second board with the switching relays and power supply for the sense board.
Reflashed the CB3S in place
Configured as below;
Code: JSON