Features of Aiphone Corporation PS-1225UL 12V DC, 25A Power Supply for LEF Series, MP-S Series, TD-Series, or New-5, Fire-Retardant, ABS Plastic Construction 15V Ac Transformer Input Voltage: 120V, 60Hz Used For DA-1DS, DA-4DS, DB-1MD, DB-1SD, or IPW-1A..