DC Switching Power Supply 12V 24V Variable Regulated Adjustable Power Supply Suitable for LED/monitoring/small Appliances 110V

This 30V 10A bench power supply is designed for everyday electronics testing, repairs and DIY projects. Built with a stable regulated output and clear digital display, it’s perfect for workbench use, soldering tasks, PCB diagnostics and engineering work. The compact metal body, smooth adjustment knobs and protective safety features make it a reliable tool for technicians, hobbyists and students. Whether you’re repairing electronics, powering small devices or running lab experiments, this power supply delivers steady performance you can count on.

More parameters

Input Voltage: AC 110/220V 50/60Hz

Output Voltage: 0~30V/60V/120V

Output Current: 0~5A/10A/3A/20A

Voltage Resolution: 10mV

Current Resolution: 1mA

Output voltage varies from 0 to nominal voltage with continuous adjustment.

Voltage Regulation: Line regulation

Recovery Time

Ripple and Noise

Temperature Coefficient

Output current varies from 0 to nominal current with continuous adjustment.

Line regulation of current regulation

Indicator meter

Voltage display accuracy: ±(0.5% of RDG + 2 digits).

Current display accuracy: ±(0.5% of RDG + 2 digits).

Operating temperature and humidity: 0 ~ 40 °C, RH

Storage temperature and humidity: -10 ~ 70 °C, RH

1️⃣Stable & Regulated Output

Provides a consistent 30V/10A regulated DC output, ideal for accurate testing and safe use with sensitive electronics.

2️⃣ Easy Adjustment with Coarse & Fine Control

Both voltage and current have dual-stage knobs, allowing smooth and precise tuning—great for soldering, diagnostics and project development.

3️⃣ Large, Clear Digital Display

Bright LED screen shows voltage, current and power at a glance. Easy to read from any angle on your workbench.

4️⃣ Safe for Workbench & Everyday Use

Built-in protection includes over-voltage, over-current, short-circuit and temperature control—trusted by technicians, hobbyists and students.

5️⃣ Perfect for Electronics Repair & DIY Projects

High Precision, Low Ripple, LED Display, Automatic CC/CV Switching

The NICE-POWER 30V 10A DC power supply is a professional power regulator with 0.01V and 0.001A accuracy, offering low ripple. The 4-digit LED backlit display provides high resolution, making it easy to read even in low-light conditions. The adjustable power supply features a CV/CC indicator, and constant voltage and constant current modes can be switched automatically.

CE and FCC Certified, Multiple Protections, Multiple Applications

This laboratory power supply has passed CE and FCC certification. The 30V DC power supply includes multiple protections: overvoltage protection, overcurrent protection, overheat protection, overpower protection, short circuit protection, and leakage protection. The DC power supply is suitable for charging FePO4 lithium batteries, Arduino projects, laboratories, schools, electronic maintenance, electrolysis, electroplating, light testing, aging tests, DIY projects, and more.

Stable Vertical Design, Lightweight and Portable

The power supply features a stable vertical design, and the bottom of the DC power supply has shock-absorbing rubber feet, making it safer and more stable during use. The DC power supply is very lightweight and portable, measuring 3.3 x 9.4 x 6.1 inches (approximately 8.4 x 23.9 x 15.5 cm) and weighing only 2.4 pounds (approximately 1.2 kg). It is easy to carry and use.

5V/2A USB Port, Smart Cooling Fan, High-Quality Materials

Quality Inspection and Terms of Service

SPS-W305 /3010

SPS305C/3010C

A power supply specifically designed for charging.

1. It can automatically disconnect when fully charged.

2. Reverse polarity protection (for positive and negative terminals).

Wide range of application scenarios

Lead-acid batteries: Used in two-wheeled electric vehicles, car starting batteries, UPS systems, and backup power supplies. Primarily use three-stage charging and require protection against overcharging and water loss. Protection features can extend battery life.

Sodium-ion batteries: Used in low-speed vehicles and energy storage (pilot projects). Charging logic is similar to lithium-ion batteries, and protection requirements are also similar.

Selling Point Description

Battery positive and negative pole detection: Turn on the "BATTERY" function, and the orange light will flash. When charging the battery, if the output positive pole is connected to the battery negative pole and the output negative pole is connected to the battery positive pole, the "BATTERY" light will still flash orange, indicating a wiring error or battery damage. At this time, it is not possible to output current and voltage.

[Charging Status Detection]: When the battery is charging normally, the "BATTERY" orange light is constantly on, and there is a battery level display and Ah display. The real-time display of charging power (Ah) allows you to understand the battery status.

[Battery Full Stop Output]: After the battery is fully charged, the "BATTERY" light turns green and the output is disconnected. When your battery is full, our power supply will stop charging, allowing you to rest assured.

[OCP Function] Overcurrent detection alarm: easily activated through the "OCP" button. Detect short circuits and overcurrent, trigger alarms and stop output to protect connected devices.

Sometimes we need to switch between different voltage or current outputs, but we often forget to unplug the previous instrument, causing it to burn out, which often occurs during maintenance. The output on/off key aims to solve this problem. By pressing the output on/off key, the required voltage and current can be adjusted without actual output power, making this DC power supply safer and more energy-efficient.

Charging Function Operation Description

Turn on the "BATTERY" function, the orange light flashes

When the battery is charging normally, the orange light "BATTERY" stays on

The "BATTERY" light flashes orange, indicating a wiring error or battery damage

After the battery is fully charged, the "BATTERY" light turns green and the output is disconnected

Firstly, you will press the "Battery" button (the "Battery" light will start flashing yellow), and adjust the voltage and current adjustment knobs to the desired values.

If the connection is incorrect (polarity heating or disconnection), or if there is a problem with the battery and charging cannot start, the "battery" light will remain on

twinkle. Confirm correct connection or check if the battery is damaged.

If there is an abnormal situation such as cable disconnection during the charging process, the power supply will stop charging, and the "battery" light will start flashing again.

Please solve the problem before pressing the 'OUTPUT' button to continue charging.

After charging is completed, the green light on the "battery" indicates that the battery is fully charged.

Charging Precautions

5000mAh battery, charging current should be set to 1A. ）

2. Please make sure to work in battery charging mode (press the battery button to turn on the light)

3. Connect the battery correctly, with red corresponding to the positive pole and black corresponding to the negative pole. After confirming that everything is correct, press the OUTPUT button to start charging

4. This product is not a professional charging device. If used for a long time, please purchase the corresponding dedicated charger

5. Non professionals or untrained personnel are prohibited from using

6. Please ensure that someone is on duty during the charging process and prohibit charging when leaving

7. Minors are prohibited from using

Introduction to Activating Battery Function

1> TicNe charging: Used for severely discharged batteries (such as those that have not been used for a long time) that require recharging. During the charging process, set

The charging current loss exceeds 0.1C (C=capacity in Ah), for example, for a 5Ah battery, the charging current should be set to 0.5A. After the battery is fully charged

Reach the Qatar valve and switch to standard charging with 0.2c.

2> Connect the positive and negative terminals of the power supply to the positive and negative terminals of the rechargeable battery using an output cable. After connection, the "battery" light remains yellow, press the "output" button to start charging (the Ah indicator light on the panel lights up, and the screen displays the charging amount)

USB-A/C Port

USB-A fast charging port support protocol: PE1.1/2.0, APPLE,BC1.2，AFC,FCP,QC2.0/QC3.0

USB-C fast charging port support protocol: PE1.1/2.0, APPLE,BC1.2，AFC,FCP,QC2.0/QC3.0,PD3.0

Our Service time

Our Working time is Monday to Friday 9:00 AM to 7:00 PM BeiJing Time.

All orders will not be processed at weekend and holidays.