1. 15V 4A AC/DC Laptop Adapter 2. UL/CUL,GS,CE,SAA, ... Co.,Ltd is a professional manufacturer of AC DC Aapter, switching power supply ,waterproof power supply ... min AC input and full load)Efficiency..............>80% DC OutputDC Voltage RegulationParameterLine Regulationload RegulationCross RegulationV1:15V ±5. ... 0% ±5.0% N/A DC Output CurrentParameterMin CurrentRate CurrentunitV1:15V 0.1 4.0A ...