Universal voltage (AC120 - 277/347V) 0-10V dimmable 1 or 2 lamps compatible with PV-EXD2C-50W LED Driver 3 or 4 lamps Compatible with PV-EXD4C-100W LED Driver No need to modify wiring: Just replace the old traditional electronic ballast with LED ballast and install the tube Lifespan: 50,000hrs Warranty: 5 years