Phihong Corporation PSA12A-120 Cord Plug: 2.1mm I.D. x 5.5mm O.D. Female Current - Output: 1A Efficiency: Energy Star V Form: Wall Mount (2 Prong) Polarization: Positive Center Power - Output: 12W Series: PSA12x Transformer Type: Switching - Energy Star Voltage - Input: 100 ~ 240VAC Voltage - Output Per Connector: 12VDC