NICE POWER Adjustable DC Lab Power Supply 30V 5A 150W 300W 360W Switching Laboratory Instrument maintenance Bench Power-Supplies Voltage Regulator AC 220Vfor Mobile phone & Laptop repair

To prevent scratches,the display screen has a protective film,which may not be obvious. If you find scratches on the screen, you can look at it carefully and you will find that there is a protective film on the screen.Doesn't do primary function-no power out. Because our power supply uses better capacitance, there will be a little delay display effect after the power is cut off. This is normal, and it will take a few seconds to turn off the screen. Fan of the power supply will automatically turn on when temperatures reach 50 ℃ .We have limit current protection, thermal protection, voltage overload protection, short-circuit protection.When you are unable to adjust the current, it may be because you do not have access to the electronic load. You can turn on an electronic load or form a short connection and then adjust it. You can also contact us. This dc power supply for phone repair,Lab use,battery charge,plating，etc.It have complete operating protection function,Double potentiometer more precise adjustment.If you find that the power supply does not work or the screen does not display after receiving the goods, please contact us immediately and If you have anything you don't understand in the process of use, please contact us and we will answer it for you.INTRODUCTION:The series of switching power supplies for measuring instrument have ruled out the inconvenience of bigvolume and heavyweight of a traditional power supply possess. Four adjustment buttons,The output voltage and current respectively is controlled by two variable resistors with coarse and fine regulation for morehandy and precise adjustment.1. Have complete operating protection function. over temperature protection,overload protection,short circuit protection.2. Small size, low ripple,light weight and high power density,Highly efficient.3. Voltage stabilization, current limiting, simple operation.4. Constant pressure and constant current switch automatically.5. Three LED display of voltage, current and power, high precision.6. Temperature controlled fan heat dissipation, low noise, long life.7. Four potentiometer more precise adjustment.8. Dual voltage input and convenient choice.9. Output Voltage ranges from 0 to 30VV rating voltage with continuous adjustment .10. Output current ranges from 0 to 5A rating current with continuous adjustment.More ParametersInput voltage:AC 220V 50/60HzOutput voltage:0 ~ 30V Output current:0 ~ 5AVoltage resolution:100mVCurrent resolution:10mAVoltage regulation : Line regulationRecovery timeTemperature coefficientConstant pressure condition:Voltage stability ≤1%+ 3mVLoad stability ≤1%+3mVRipple noise :≤50mVrms(effective value)Constant current state: current stability ≤ 1%+ 3mVLoad stability ≤1%+ 3mVRipple noise :≤50mArms(effective value)Indicator MeterVoltage display precision: (1% of rdg + 2 digits).Current display precision: (1% of rdg + 2 digits).Operation Temperature & Humidity : 0 ~ 40 C, RHStorage Temperature & Humidity : -10 ~ 70 C, RHPackage Dimensions ‏ : ‎ 12.48 x 8.23 x 5.08 inchesEncoder Knob VS Coarse/Fine Adjust Comparison TableComparison Item【Encoder Knob】Encoder Knob Version【Coarse & Fine Adjust】Coarse‑Fine Dual‑Knob VersionKnob Configuration2 encoder knobs (one for voltage, one for current). Tactile click‑stop detent feedback when rotating.4 potentiometer knobs. Separate independent Coarse knob and Fine knob for voltage and current respectively.Adjustment LogicEach click corresponds to fixed‑value change. Press the knob to toggle coarse/fine step size. One single knob handles both fast and slow adjustment.Coarse knob quickly changes values over a wide range; Fine knob makes tiny precise corrections. Two knobs work together for setting parameters.Output Switch✅ Independent Output ON/OFF button. Enable output after parameter setup to avoid voltage surge and protect DUT.❌ No dedicated output switch. Voltage and current are output directly from terminals once knobs are adjusted.Identical Common Specs4‑digit display for voltage, current & power; built‑in USB 5V‑2A port. Same electrical performance, dimension 228.515.5 cm, net weight 1.2 kg.4‑digit display for voltage, current & power; built‑in USB 5V‑2A port. Same electrical performance, dimension 228.515.5 cm, net weight 1.2 kg.【Coarse & Fine Adjust】Series： SPPS‑C Encoder Series DC Power Supply（Product 2） INTRODUCTION:The series of switching power supplies for measuring instrument have ruled out the inconvenience of big volume and heavy weight of a traditional power supply possess. Adopts high‑precision encoder knob adjustment , click‑by‑click digital setting, no over‑shooting for more handy and precise adjustment.1. Have complete operating protection function. over temperature protection, overload protection, short circuit protection.2. Small size, low ripple, light weight and high power density, Highly efficient.3. Voltage stabilization, current limiting, simple operation.4. Constant voltage and constant current switch automatically.5. Four‑digit display of voltage, current and power, high precision readback.6. Temperature controlled fan heat dissipation, low noise, long life.7. Encoder knob digital adjustment, stable setting without drift . 8. Dual voltage input and convenient choice.9. Different models support continuous adjustable output voltage: 0‑30V / 0‑60V / 0‑120V.10. Different models support continuous adjustable output current: 0‑3A / 0‑5A / 0‑10A. More ParametersInput voltage:AC 220V 50/60Hz (AC110V optional)> > Model options：> SPPS‑C305：Output voltage:0 ~30V；Output current:0 ~5A；Power:150W> SPPS‑C3010：Output voltage:0 ~30V；Output current:0 ~10A；Power:300W> SPPS‑C605：Output voltage:0 ~60V；Output current:0 ~5A；Power:300W> SPPS‑C1203：Output voltage:0 ~120V；Output current:0 ~3A；Power:360WVoltage resolution:10mV（＜100V）；0.1V（≥100V）Current resolution:1mALine regulation:Voltage: ≤0.01%+2.5 mVCurrent: ≤0.1%+2.5 mALoad regulation:Voltage: ≤0.3%+10 mVCurrent: ≤0.1%+2.5 mASetting AccuracyVoltage: ≤0.05%+10mV（0‑60V）；≤0.01%+15mV（120V）Current: ≤0.01%+10mAReadback AccuracyVoltage: ≤0.05%+10mV（0‑60V）；≤0.01%+15mV（120V）Current: ≤0.01%+10mARipple (20Hz~20MHz)- SPPS‑C305：Voltage ≤60 mVp‑p / ≤10 mVrms；Current ≤10 mArms- SPPS‑C3010：Voltage ≤100 mVp‑p / ≤15 mVrms；Current ≤15 mArms- SPPS‑C605：Voltage ≤200 mVp‑p / ≤20 mVrms；Current ≤20 mArms- SPPS‑C1203：Voltage ≤300 mVp‑p / ≤30 mVrms；Current ≤30 mArmsEfficiency: ≥85%Indicator MeterVoltage display precision: 10mV readback resolution（＜100V）,0.1V readback resolution（≥100V）Current display precision:1mA readback resolutionOperation Temperature & Humidity : 0 ~ 40 ℃, RHStorage Temperature & Humidity : -10 ~ 70 ℃, RHSize: about 228.515.5cm, Net weight:1.2KGPackage Dimensions: 29.51321cm, weight:1.65KG (8pcs/Carton)【Encoder Knob】Series：