Linear Power Supply/Charger- 12/24Vdc @ 2.5A, Type Linear Power Supply/Charger, Material Phenolic or Fiberglass, Length 4.00 In, Width 6.50 In, Height 2.00 In, Input Voltage 16-28VAC, Voltage OUTPut 12VDC or 24VDC, OUTPut Current 2.5A Amps, Input Frequency 60 Hz, Includes Battery leads