David Eduardo wrote:

Some US 50's are 50 day and night; a few are non-directional all hours,
others go directional at night, others are directional at all hours. And
then there are many 50's in the daytime, that reduce to lower levels at
night... as low as 250 watts!

KIQN/Tooele UT on 1010 runs 50,000w day, 3,100w critical hours and a
whopping 13w (yes thirteen watts) nights.