We recently installed a dimmable light fixture that specifically lists the Lutron PD-5NE as incompatible (E30640-MW.pdf (et2online.com)). We're not sure what the reason for the incompatibility is and haven't been able to find much info on the fixture's driver (LD048H-CU12042-M48E) to figure out why. We suspect that the PD-5NE could actually work with it if we reverse the phase, but if that doesn't work and the fixture breaks because of it, then the warranty is void. It seems like an expensive risk to take so I'd like to better understand whether there's some fundamental incompatibility or if it's just an idiot-proofing advisory in the manual.