110v and 220v devices ?
23 minutes ago, Mark65428 said:Can a device that come with 110v adapter work with another same voltage and amperage but on 220v current ?
220v is voltage , current is something else.
Power is Voltage x Current.
If the device has a built in power supply with wide input voltage capability (for example 85v - 240v AC), then it will work in either 110v or 220v countries.
If the device has a low voltage input (a barrel jack connector), and the power adapter it comes with outputs a low DC voltage (ex 5v or 7.5v or 12v or 20v or some other low voltage), then the device won't care about the mains voltage and what adapter is used ... as long as it gets the voltage and at least the amount of current it will be happy.
For example, if a monitor has a barrel jack connector and says on it 12v 2.5A (30 watts) that means the monitor must be powered by a power supply that supplies 12v and AT LEAST 2.5A, so it could work with any 30w power adapter (12v 2.5A) or something higher, like for example a 65w laptop adapter (12v 5.4A) - the monitor will take as much as it needs.
Note there's two very common standards for barrel jacks : 2.1 mm Inner Diameter (ID) and 5.5 mm Outer Diameter (OD) and 2nd is 2.5mm ID / 5.5mm OD (more common on higher current adapters, like 3A or higher for example)
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