With florescent lamps and ballast/driver fixtures, a "local disconnect" is required before the ballast/driver to isolate the lamps safely. With the introduction to direct line voltage LED lamps into standard troffers for retrofits and such, there is a mandate on placing a sticker to warn of the high voltage. My question is if there is a code requirement to install a disconnect as well in the fixture? In NEC 410, I saw that if the luminaire is powered from only one side, it did not. It would then be considered the same in effect as a single pin fluorescent tube.