Sony VAIO charger 19.5V 120W power supply Introduction
Genuine Sony power supply for Sony Vaio laptops and some Sony TV sets
19.5 V, 6.2A Amp value is the max the adapter can provide, if your laptop requires less, it is going to work just fine. Actually having more amperage available means power supply would last longer, because it would not work under 100% load all the time, less prone to fail or overheat
