I am an amateur astronomer and an electrician so I can relate to both sides of the issue. (I also sit on a zoning board.) I have installed lights that wouldn't create light polution. I have also installed a light that a neighbor called up and complained that the light I installed was too bright. ( We had to get a shield to block some of the light.) I also had to buy shields for lights (or side blinders as some are called) to prevent spill over of light onto the next door neighbor's yard. Most zoning/planning boards will allow light fixtures for parking lots but they usually ask for the "shoebox" or downlight type of lights. This way all the light shines down and not on the neighbors yard.
Harold
