On 30/11/2019 10:06, Harry Bloomfield wrote:
on 29/11/2019, Steve Walker supposed :
*Maybe they should build in a 12 hour timer to cancel that feature
automatically.

They do - each dark to daylight transition cancels the light remaining
on, or at least thats the case with every such light I have come across.

I've nover left one on long enough to find that out and it's not in the
instructions for the ones we've got, but it it could well be an
undocumented feature.

SteveW