As a Dell laptop charger with AC adapter, YR733 is also regarded as a travel charger. Wherever you go, the 50/60HZ input voltage can be used for any mains supply. So such a worldwide compatible device is your best friend in the journey. On the top of the adapter shell, there’s a name board that has output power 65W, output voltage 19.5V and magnitude of current 3340mAh there. In fact, no all the chargers have the global compatible functions like USB Phone World products have. If you are going to use it for business trip or travelling, please keep away from them. In addition, the control circuits have a certain procedure to record and adjust the work situations of other internal parts. As long as any accident has occurred, it has the records inside and can take action according to assigned procedures. And you’d better try to avoid initiating it in normal use.