It converts AC power from a wall outlet to 12V DC power.
It's commonly used for electronic devices like LED lights, small appliances, and automotive applications.
It may have safety certifications like CE.
It can protect against short circuits, overcurrent, overvoltage, and over-temperature.
Some models have features like remote on/off control and adjustable outputs.
It can be used to power devices designed for vehicles when they are not in a vehicle.