Straßenlaternenmast m
streetlight pole [(preferred term) the bottom of a streetlight pole is called "stand" and made usually of concrete, it actually does not provide added stability but rather must be rigid enough to withstand the stresses and wind forces sustained by the pole, on the upper end of the pole there is the "bracket arm", to which the luminaire (the actual streetlight) is attached.]
latern pole [see: streetlight pole]