Description Product Reviews State of the art technology gives Valcom’s Switching Power Supplies a competitive advantage. These supplies offer a highly reliable power source in a smaller, more efficient package than their linear counterparts. 24 Volt DC “A” Battery Power Supply (3) 2 Amp Outputs Regulated And Filtered Floating Output Input Fuse Protection Over-Voltage Protection Wall Mount Plate Included AC Cord Included 24 VDC, Switching, Digital, Filtered (UL, CSA, CE) +120 Valcom Power Units Valcom Power Units Every Valcom product is marked with either a positive, negative or neutral power unit. Simply add up the negative power units and then purchase a power supply with a greater value than the total power consumption of the system. If you have extra power units you can add speakers to the system at a later date, extra power is OK lower power will cause a performance problem on your paging system. One Valcom power unit = 50 mA, -24 Vdc 0 Reviews Hide Reviews Product Reviews