Looking for opinions on an install. Hard lid ceiling in a bathroom with two 2x4 fluorescent lights. CMU walls that extend all the way to the roof deck, basically leaving no access above the ceiling from inside or outside the room. Okay to set a box above the fixtures? I guess I am basically asking if a box is considered accessible if a fixture has to be totally removed from the ceiling to access it. Also, would it sway your opinion if the box feeds the lights? I feel the box would not be considered accessible, whether it is feeding the light or if it was just a pull box for a totally different circuit. Anyone else?