Why the input voltage marked on the spec. sheet is 88~264 VAC while that it is 1...
Source:REIGNPOWER
Release Date:2013-10-29
During safety verification process, the agent will use a stricter standard -- 10% (IEC60950 uses +6%, -10%) of the input voltage range labeled on the power supply to make the test. So, the wider input voltage range specified on the spec. sheet should be fine while operating. The narrower range of input voltage labeled on the power supply is to fulfill the test standard of safety regulation and make sure that users insert input voltage correctly.