This SPS series of regulated DC power supply has good stability and ripple factor. Can work at full load for a long time for its perfect protection circuit. Both output voltage and output current are continuously adjustable between 0 and nominal value. The power supply can be used as both a regulated power supply and a regulated current supply. Very suitable for laboratories, schools and production lines.     Feature:  1. Dual Power Output Modes: including constant voltage output and constant current output(CC), determined by the voltage and current values set and the load connected by the user.  2. Adjustable Output Voltage & Current: output voltage and output current can be continuously adjusted between 0 and nominal value.  3. USB Quick Charging Function: the machine has built-in fast charging protocol identification chip that supports 5V2A USB fast charging function.  4. Reliable & Safety Operation: it has over voltage protection(OVP), over current protection(OCP), over temperature protection and short circuit protection function.  5. Clear LED Display: big red font LED 3 digits display of voltage and current, and features of voltage stabilization, current limiting, high precision and simple operation.  6. Wide Application: can be used in mobile phone maintenance, computer maintenance, electrical maintenance, school laboratories scientific research and production line use and all other need DC regulated power supply.     Specification:   Out voltage: 0～30V.  Output current: 0～10A.  Input voltage: 230V+10%; 50Hz (115V+10% 60Hz).  Operating temperature: 0°C～40°C; （Relative humidity： <80%RH）.  storage temperature:－10°C～70°C; （relative humidity： <70%RH）.  Constant pressure state:  Voltage stability: ≤0.1%+3mV.  Load stability: ≤0.5%+3mV.  Ripple noise: ≤20mVrms.  Constant current state:  Current stability: ≤0.1%+3mA.  Load stability: ≤0.2%+3mA.  Ripple noise: ≤20mAems (effective value).  Display accuracy: 0.5%+2 words.  display resolution:  Voltage: 0.1V Current: 0.01V.  Product Size: 223*93*145mm.  Product weight: 1.6kg.  Fuse specifications: 3A (220V input).     Package Included:  1 X DC Power Supply