NICE-POWER SPS-E305 LED Testing 30V 5A 150W Adjustable DC Power Supply with Encoder Adjustment
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NICE-POWER SPS-E305 LED Testing 30V 5A 150W Adjustable DC Power Supply with Encoder Adjustment

$49.99
$49.99
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Model: SPS-E305
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NICE-POWER SPS-E305 LED Testing 30V 5A 150W Adjustable DC Power Supply with Encoder Adjustment

NICE-POWER SPS-E305 LED Testing 30V 5A 150W Adjustable DC Power Supply with Encoder Adjustment

$49.99

NICE-POWER SPS-E305 LED Testing 30V 5A 150W Adjustable DC Power Supply with Encoder Adjustment

$49.99
Model: SPS-E305

Download English Manual (PDF)

Click the link above to get the full user guide for this product.

NICE-POWER SPS-E305 LED Testing 30V

5A 150W Adjustable DC Power Supply

with Encoder Adjustment

NICE-POWER SPS-E305 is a compact 30V 5A 150W Adjustable DC Power Supply designed for LED Testing and other low-voltage electronic evaluation tasks. Its adjustable voltage and current output allows users to establish suitable DC operating conditions for LED components, LED modules, indicator circuits, and small lighting circuits. The Encoder Adjustment provides controlled setting of voltage and current, while the 3-digit display makes the configured output values easy to monitor during bench testing.

Key Features

0-30V Adjustable DC Output

The SPS-E305 provides a 0-30V adjustable DC output, allowing users to set different voltage levels according to the requirements of LED Testing. This range is suitable for evaluating individual LED devices, LED modules, and low-voltage LED circuits within the power supply's operating range.

Up to 5A Adjustable Current

With an adjustable current output of up to 5A, the Adjustable DC Power Supply can provide different current conditions for LED Testing. Users can adjust the current setting when evaluating LED brightness, operating conditions, or circuit response.

150W Output Capability

The 150W output capability provides sufficient power for a wide range of bench-level LED Testing tasks. It can support individual components as well as small LED modules and prototype lighting circuits when their voltage and current requirements are within the SPS-E305's specifications.

Precision Encoder Adjustment

The Encoder Adjustment design provides a more controlled way to set voltage and current compared with simple fixed-step controls. This is useful when LED Testing requires repeated adjustment of operating conditions during component or circuit evaluation.

3-Digit Display

The 3-digit display provides a direct view of the power supply's adjustable output settings. During LED Testing, users can monitor the configured voltage and current values while making adjustments to the test conditions.

Fine Voltage and Current Setting

The SPS-E305 supports a voltage setting resolution of 10mV and a current setting resolution of 1mA. This allows users to make relatively fine adjustments when establishing test conditions for LED components and low-voltage LED circuits.

Constant Voltage and Constant Current Operation

The SPS-E305 supports constant voltage and constant current operation, making it suitable for LED Testing where controlled electrical conditions are important. The operating mode can correspond to the voltage or current requirements of the connected test circuit.

Low Ripple Output for Bench Testing

The SPS-E305 provides voltage ripple of ≤60 mVp-p / ≤10 mVrms and current ripple of ≤10 mArms according to the specified product data. This makes the Adjustable DC Power Supply suitable for controlled bench testing of LED components and small electronic circuits.

Compact Mini Bench Design

The compact mini design makes the SPS-E305 convenient for electronics workbenches where space is limited. Its small form factor allows it to be positioned close to LED test fixtures, prototype boards, and other equipment used during repeated LED Testing.

Applications

Individual LED Testing

Use the SPS-E305 to establish adjustable DC voltage and current conditions for evaluating individual LED components within the 30V and 5A output range.

LED Module Testing

The Adjustable DC Power Supply can provide adjustable operating conditions for small LED modules, helping users evaluate their electrical response under different supply settings.

LED Brightness Evaluation

Different voltage and current settings can be established to observe changes in LED operating conditions and brightness during controlled bench testing.

Indicator LED Circuit Testing

The SPS-E305 can be used to supply adjustable DC power to indicator LED circuits in electronic prototypes, allowing voltage and current conditions to be adjusted during circuit verification.

LED Prototype Testing

During early-stage LED circuit development, the SPS-E305 provides an adjustable DC source for testing prototype LED circuits before final power-system integration.

Low-Voltage Lighting Circuit Testing

For low-voltage lighting circuits that fall within the SPS-E305's 0-30V and 0-5A output range, the power supply can be used to establish adjustable test conditions on the workbench.

LED Current Condition Testing

The adjustable current setting allows users to establish different current conditions when evaluating LED components and LED circuits, supporting repeated comparison during bench testing.

LED Voltage Condition Testing

The 0-30V adjustable output allows users to change the applied voltage when testing LED components or circuits and observing their response to different voltage conditions.

LED Circuit Development

The SPS-E305 can serve as a compact Adjustable DC Power Supply during LED circuit development, providing a controllable DC source for prototype evaluation and circuit adjustment.

Electronics Education and Training

Its compact design, Encoder Adjustment, adjustable 0-30V output, and 3-digit display make the SPS-E305 suitable for educational LED Testing and basic electronic circuit experiments.

Quality Check and Terms of Service

  • Package includes: 1 × DC Power Supply

  • 1 × Power Cord

  • 1 × Output Test Lead

  • 1 × User Manual

  • Has passed CE & FCC Certification.

  • All DC power supplies and accessories are inspected before shipment to ensure good quality.

  • Customer support: Contact us with any questions, and we'll respond within 24 hours.

Technical Specifications

Parameter Specification
Model SPS-E305
Product Type Adjustable DC Power Supply
Output Voltage 0-30V
Output Current 0-5A
Rated Power 150W
Adjustment Method Encoder Adjustment
Display 3-Digit Display
Input Voltage AC100-240V
Voltage Setting Resolution 10mV
Current Setting Resolution 1mA
Voltage Readback Resolution 10mV
Current Readback Resolution 1mA
Voltage Setting Accuracy ≤0.05% + 10mV
Current Setting Accuracy ≤0.01% + 10mA
Voltage Readback Accuracy ≤0.05% + 10mV
Current Readback Accuracy ≤0.01% + 10mA
Voltage Load Regulation ≤0.3% + 10mV
Current Load Regulation ≤0.1% + 2.5mA
Voltage Line Regulation ≤0.01% + 2.5mV
Current Line Regulation ≤0.1% + 2.5mA
Voltage Ripple ≤60 mVp-p / ≤10 mVrms
Current Ripple ≤10 mArms
Rise Time, No Load ≤200ms
Rise Time, Full Load ≤300ms
Fall Time, Full Load ≤300ms
Fall Time, No Load ≤15S
Dynamic Response ≤200ms
Efficiency ≥85%
Rated Operating Temperature 0-40°C
Size About 18.5 × 10 × 7.8 cm
Net Weight About 0.7KG
Package Size 23 × 19 × 11 cm
Package Weight 1.1KG

Why Choose NICE-POWER SPS-E305?

NICE-POWER SPS-E305 combines a 30V 5A 150W Adjustable DC Power Supply with Encoder Adjustment in a compact mini form factor. For LED Testing, its adjustable voltage and current output provides flexible test conditions, while the 3-digit display and fine setting resolution help users monitor and adjust operating parameters on the bench. The compact design also makes it practical for LED component evaluation, LED module testing, prototype development, and electronics education where a small adjustable DC power source is required.

Warranty

30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.

Please feel free to reach us with any concerns:

Email: kuaiquinstrument@163.com

We strive to reply to you within 24 hours.

Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.

We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.

At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.

What is the 30-Day Price Guarantee?

Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)

How Does the Price Guarantee Apply?

  • Eligibility: The price guarantee applies only to purchases made on kuaiquinstrument.com. Products purchased from other retailers or third-party sellers are not eligible.
  • Timeframe: The price drop must occur within 30 days of your original purchase date.
  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

How to Apply for a Price Difference Refund

If you notice that the price of a product you purchased from kuaiquinstrument.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:

  • Documentation: Prepare your order number and proof of the price drop (such as a screenshot and link to the product page showing the reduced price).
  • Contact Us: Reach out to our customer support team at kuaiquinstrument@163.com. Include your order number, proof of the price drop, and a brief explanation of your request.
  • Verification: Our team will verify the price drop and your purchase details.
  • Refund Process: Once verified, we will process the refund for the price difference to your original method of payment. It typically takes 1-3 business days for you to receive the refund.

At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.

Thank you for choosing KUAIQU. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at kuaiquinstrument@163.com.

FAQs

Still confused about our DC regulated power supplies after checking the FAQs? Please contact our customer service, we are ready to solve all your problems.

Use overlay text to give your customers insight into your brand. Select image and text that relates to your style and story.

Our customer service can walk you through all settings. You can also watch full operation tutorials on our YouTube channel, including OVP, OCP, memory storage function and other operation guides. Our official blog also has lots of technical articles for reference.

Partial KUAIQU power supplies support program control with USB, RS232, RS485 interfaces, based on Modbus protocol. Remote control can be realized via our self-developed PC software. If you need this function and confirm interface configuration of a model, email us: kuaiquinstrument@163.com..

The banana plug adopts cross-slot design. Pry the metal slot slightly open with a screwdriver to make the plug clamp terminals tighter and safer..

All KUAIQU DC power supplies support basic battery charging. For dedicated long-term charging, our patented battery-charging model with independent BATTERY key and full charging protection is highly recommended.

A certain amount of ripple is normal for all switching DC power supplies. Ripple is a small residual AC component superimposed on the DC output and is an inherent characteristic of switching power supply technology. The typical ripple voltage of our power supplies ranges from approximately 100 mV to 300 mV, which is suitable for most general-purpose testing, maintenance, and electronic applications.

A: Minor fluctuations in the last displayed digit are normal and are typically caused by temperature drift within the electronic components. As ambient and internal temperatures change, small variations in the readings may occur. This falls within normal industry tolerances and does not affect the power supply's suitability for everyday electronics work, home repairs, DIY projects, or general testing. For applications requiring extremely high precision and ultra-stable output, a linear DC regulated power supply may be more appropriate.

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage. Q: Why does t

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FAQs

If you have any other questions or technical doubts about our DC power supplies, please feel free to contact us anytime. Our professional support team will reply to you as soon as possible.

Output ripple refers to small residual AC fluctuations present in the DC output. Lower ripple levels provide cleaner power, which is important when testing sensitive electronics, RF circuits, audio equipment, and precision instruments.

Yes, all DC regulated power supplies manufactured by KUAIQU support battery charging. However, if you mainly intend to charge batteries, I would highly recommend our patented DC power supply specially designed for battery charging. It comes with an exclusive dedicated BATTERY function key, and built-in specialized charging protection functions to safeguard your batteries during the whole charging process..

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage..

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds..

This is a common operation issue for adjustable DC power supplies. Please follow the steps below to solve the voltage adjustment failure: Turn the current adjustment knob clockwise moderately to set the unit to constant voltage (C.V) mode; After confirming the power supply enters CV mode, turn the voltage adjustment knob clockwise, then you can freely adjust the output voltage value..

It is recommended to pre-adjust the voltage to around 5V before operation. This step prevents spark generation when connecting short-circuited loads, which effectively avoids safety accidents and other hidden electrical hazards..

A: Our banana plug adopts cross-slot design. If the plug becomes loose, use a screwdriver to slightly pry open the metal slot, which can make the plug clamp tighter and connect more safely..

Some models of our KUAIQU DC regulated power supplies support programmable control. They are equipped with USB, RS232 or RS485 communication interfaces and adopt the Modbus protocol. You can realize remote control easily by using our self-developed PC software. If you need programmable control but are unsure whether a specific model comes with your required communication interface, please feel free to contact us via email: kuaiquinstrument@163.com.

If you have any confusion about using OVP, OCP and other built-in functions, our professional customer support staff will provide targeted guidance for you. We also upload complete step-by-step tutorial videos on our official YouTube channel. Apart from OVP and OCP over-protection setup, the videos demonstrate memory storage function and all common operation skills. You can visit our channel via https://www.youtube.com/ In addition, our official blog contains a large number of popular science and technical articles about DC power supplies, you can search and browse related content to solve your problems.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.