... CE,FC,CCC,CB,RoHs aprroved 2years warranty power transformer FEATURE:Constant Voltage Mode, Easy PortableTECHNICAL PARAMETER:l Input Voltage: ... Resistance DC 500V 100MΩ (min) (between input and output)l High-pot test: 3,000Vac,60s, 5mA (maximum) l Insulation resistance ...