Sylvania Quicktronic High Efficiency POWERSENSE T5HO electronic ballasts offer several advantages. They offer a wide dimming range. They operate linear fluorescent PENTRON HO, PENTRON HO Circline, and DULUX LT5 lamps, which offer a 100 to 1 percent dimming range and provide true versatility in controls selection. They have the industrys most adaptable dimming ballast which feature a micro controller technology that is compatible low voltage controls, power line fluorescent dimmers, and any line voltage from 120V to 277V. The patented lamp detection technology that virtually eliminates variations in brightness from lamp to lamp and provides uniform lighting throughout the dimming range. This technology also eases installation and troubleshooting by recognizing failed lamps, faulty wiring or loose connections, and shutting down. When the problem is corrected, the system restarts automatically.