PS6: 300W Toroidal Transformer and Autofusing Circuit.In the event of a fault condition the transformer can be reset from the wall switch. Use where the system will not be dimmed. Primary uses are for retail and commercial applications. The PS6 is UL listed as a Low Voltage Lighting Power Supply Center. The warranty on this power supply is 2 years. The high efficiency quotient allows the PS6 to be fully loaded with no de-rating necessary.