This single feed flush transformer with electronic transformer converts standard 120 line voltage to 12 volts to provide the necessary voltage for powering a Monorail low voltage lighting system. It can power lamps totaling up to 60 watts. The transformer, concealed by a decorative canopy, fits in junction box and features a fast acting secondary circuit breaker that will safely turn the system off should a short occur. Once the short has been removed the unit can be reset by simply flipping the wall switch off and back on. The shortest rigid standoff that can be used with this surface transformer is the 2 inch rigid standoff, sold separately. If dropping the rail more than 2 inches below the ceiling, order the desired rigid standoff length and one compatible power extender, sold separately.