1. Color LED screen, 4-digit display, with power display. 2. Double knob encoder for precise adjustment. 3. Output light button, output current and voltage with one button to protect the safety of electrical appliances. 4. USB 5V 2A output port, can charge mobile phones. 5. Intelligent cooling fan, when the operating temperature is higher than 50C, the cooling fan automatically turns on. Input voltage:AC 110V 60HZ Output voltage:0 ~ 60V Output current:0 ~ 5A/ Voltage resolution:10mV Current resolution:1mA Output Voltage ranges from 0 to rating voltage with continuous adjustment . Voltage regulation : Line regulation<5mV. Load regulation<5mV. Recovery time<500us(50% Load change, minimum load 0.5A) Ripple & Noise<5m Vrms, 100m Vp-p Temperature coefficient<100p pm/C. Output current ranges from 0 to rating current with continuous adjustment Current regulation line regulation<3mA. load regulation<3mA. Indicator Meter Voltage display precision: +-(0.5% of rdg + 2 digits). Current display precision: +-(0.5% of rdg + 2 digits). Operation Temperature & Humidity : 0 ~ 40 C, RH<80%. Storage Temperature & Humidity : -10 ~ 70 C, RH<70%.