Candidate for H6181 hardware 1.00.03 / firmware 1.03.00.
Retains the tested colour route and fixes required identity acquisition before commands after connecting.
Other revisions retain their existing colour encodings.
Install this exact candidate through HACS/Marketplace and restart Home Assistant.
With the Govee app closed, test RGB and 4000 K as the first command after connecting or reconnecting, plus power/brightness.
Hardware confirmation, including the visible white tone, is still required.