1laptop adapter For 18.5V 4.9A 7.4*5.0mm . 2.UL/CUL,CE,SAA,C-Tick,FCC,ROHS, ... Co.,Ltd is a professional manufacturer of AC DC Aapter, switching power supply ,waterproof power supply with 11 years experience , that is ... and full load)Efficiency..............>80% DC OutputDC Voltage RegulationParameterLine Regulationload RegulationCross RegulationV1:16V ±5.0% ±5.0% N/ADC Output CurrentParameterMin ...