> Input power: AC 230V/115V±10%; 50Hz/60Hz

> Operating temperature: 0℃ ~ 40℃; Relative humidity :< 80%RH

> Storage temperature: -10℃ ~ 70℃; Relative humidity :< 70%RH

> Voltage stability: 0.5%±3mV

> Load stability: 0.5%±3mV

> Ripple voltage: ≤0.5% VP-P (Adjustable continuously from 0 to rated voltage)

> Current stability: 0.5%±3mA

> Load stability: 0.5%±3mA

> Ripple current: ≤0.5% VP-P

> Recovery time: ≤500μS

> Temperature coefficient: ≤100ppm/℃ (Continuously adjustable from 0 to rated current)

> Display accuracy: 0.5%±5 words

> Display resolution: voltage 0.01V, current 0.001a (0.4 "white light four digit tube display three groups)