This places fixtures at between 3/4 and 7/8 of the height of the door and lets those approaching the door knock or gain entry without glare in their eyes. Lights need to be high enough to illuminate the immediate porch area and steps within a few feet of the door.
intermediate definition an intermediate is a substance formed during a middle step of a chemical reaction between reactants and the desired product examples in the chemical equation
The definition of advanced means to have moved forward. An example of advanced is a team who moved from fifth to first place. moved forward; in front: an advanced military post. far on in time or in a course of action or events: despite his advanced age, at an advanced stage in the trial.