I have a lot of HID fixtures that we are considering installing screw-in LED lamps. These HID fixtures are fed with either 208, 240 or 277 volt circuits. The LED lamps require the ballast to be bypassed wjhich is not a concern. The issue I have is that the existing fixtures have medium based sockets. NEC article 210.6 (c) says if the circuit exceeds 120 volts I need to have a mogul based socket. The LED lamp is rated 120-277 volts. My AHJ is only concerned with meeting Article 410.137, that the LED lamp is "listed" which it is. I think without having a mogul base socket I am violating 210.6. What do you think?