The nominal voltage setting. In adaptors, this voltage is preset. With open frame power supplies, a voltage adjust potentiometer is standard. Efficiency Output power divided by Input Power. This will vary depending on the load and AC input voltage.
Values shown are usually nominal at rated voltage and load.
Emissions Electromagnetic radiation emitted into the atmosphere from the power supply. The test voltage between the input and output, and output to ground. See our safety compliance section. Determined by the storage factor within the power supply. In linear supplies, the time output fails when AC input fails, is almost immediate.