Dirty power, loss of neutral and voltage swells can leave your customers in the dark as they can cause not just one fixture but the entire circuit of fixtures to fail. Dirty power cannot be protected in the same way as a surge - you need something more. LED technology is much more sensitive to these episodes than traditional HID systems originally installed in the building. One loss of neutral episode could potentially result in damages worth hundreds of thousands of dollars.
The Advance Xitanium DuraVolt LED drivers are designed to address drop neutral failures on 277V lines and other power quality issues.