If you connect a 12-volt device to a 110-volt power source, the device may be damaged or destroyed because it is designed to operate at a much lower voltage. The higher voltage may cause excessive current to flow through the device, resulting in overheating, burned out components, or an electrical fire.
If you connect a 127-volt device to a 110-volt power source, the device may not operate properly or may not turn on. Devices are generally designed to operate within a specific voltage range, and lower voltage may result in reduced performance or malfunction.
In some cases, the device may still work, but less efficiently.
Connecting a 12V device to a 15V power source can potentially damage the device because it is being powered with a higher voltage than it is designed for. This may result in overheating, component failure, or reduced device life. Some devices can tolerate slight power surges, but it is generally not recommended to exceed the recommended voltage.
When you connect a 220-volt device to a 110-volt power source, the device will likely not operate properly, if at all.
Many 220-volt devices require higher voltage to operate, and connecting them to a lower voltage source will not provide enough power, which could cause the device to break down or malfunction.
If you use a 12V adapter with a 9V device, the device may be damaged due to the higher voltage supplied by the adapter. Increasing voltage can cause overheating, malfunction, or even permanent damage to the internal components of the device. It is important to use an adapter that matches the voltage requirements of the device to ensure proper operation and avoid damage.