The lamps are very good quality and easy to assemble (with one negative issue below) and great value. Attaching the lamp bodies to the post box: each lamp body has a large bolt on top and smaller bold on bottom which go through pre-drilled holes on the post box. The top bolt is not a problem, however it is virtually impossible to get the nut on the smaller bottom bolt. This is caused by a precast cross-arm running across the bottom of the post box (used to attach the knob to the top of the post box).  This could easily be corrected by placing the cross arm mid-way to allow full access to both top and bottom bolts.