---
product_id: 102179369
title: "Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display"
brand: "longwei"
price: "COP 715299"
currency: COP
in_stock: true
reviews_count: 8
category: "Longwei"
url: https://www.desertcart.co/products/102179369-longwei-k3010d-4-digit-led-display-dc-power-supply-variable
store_origin: CO
region: Colombia
---

# 0-30V / 0-10A variable output 4-digit precision display Intelligent temperature-controlled fan Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display

**Brand:** longwei
**Price:** COP 715299
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your precision projects with confidence and style!

## Quick Answers

- **What is this?** Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display by longwei
- **How much does it cost?** COP 715299 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/102179369-longwei-k3010d-4-digit-led-display-dc-power-supply-variable)

## Best For

- longwei enthusiasts

## Why This Product

- Trusted longwei brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cool & Quiet:** Smart fan activation keeps noise low and lifespan high
- • **Safety First:** Multi-layer protection guards your projects and gear
- • **Pinpoint Accuracy:** Ultra-fine 0.01V & 0.01A resolution for flawless tuning
- • **Compact Powerhouse:** Lightweight, benchtop design fits any workspace
- • **Ready Out of the Box:** Complete kit with cables, probes & lifetime support

## Overview

The Longwei K3010D is a professional-grade DC power supply offering variable output from 0-30V and 0-10A with ultra-precise 4-digit LED readouts. Engineered for safety with multiple protections and intelligent cooling, it’s a compact, reliable tool ideal for labs, DIY electronics, and industrial testing. Comes fully equipped with cables, probes, and backed by 12-month warranty plus lifetime tech support.

## Description

Buy Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display : Transformers : desertcart.co.uk ✓ Free delivery on eligible orders

Review: Jolly good - Works fine and erfect for general use.
Review: Great Value and 30v and 10a - It does exactly as described. It saved me from buying 2 new flymo batteries (saving £140+), The charger was a smart one and as they dropped below a certain amount would not charge. 30-60 seconds gave the batteries the charge it needed and was recognised by the supplied smart charger. (please don't copy me, but it worked)

## Features

- ✅【High Precision with 4-Digit and Power Display】LONGWEI 30V 10A DC benchtop power supply is a professional power supply regulation device that has a high resolution of 0.01V and 0.01A. You can easily tune it within 0-30V and 0-10A. The backlit 4-digit LED display provides a more accurate readout for the voltage and current value, visible easily even in the low-light conditions.
- ✅【High Quality with Essential Safety】Safety is our priority. Grounding wire, This bench power supply 30v 10a takes the function of limited flow protection, overpower protection, over temperature protection, voltage overload protection. greatly improving its working efficiency and lifespan!
- ✅【Excellent Heat Dissipation】Equipped with a big fan controlled by intelligent temperature control sensor and multiple heat radiation grooves on both sides, Intelligent fan offers excellent heat dissipation effect, which reduces the noise and prolongs the life of product effectively.( When the internal power supply reaches a certain temperature, the fan will automatically turn on for heat dissipation)
- ✅【Compact and Various Application】This one weighs less than 2kgs and measures only 2.7*8.6*6.3inches, Applies for cb radio power supply, Lab Power Supply ，DIY, Electroplating Kit，Teaching Supplies，Work Bench ，Electronic Projects ., aging test and other requirements thanks to complete test probes and output cable with alligator clips.
- ✅【What You Get & SERVICE】1 x 30V 10A DC power supply, 1 x output power cord, 1 x Input power cord, 1 x test probes, 1 x User manual. (Buy Now Risk-Free with 30 days Free Of Return,we provide 12-Month after sale service, lifetime technical support. Please feel free to contact us if you have any concerns,we will reply to you to solve your problem in 24H.)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MDVTTM7 |
| Amperage | 10 Amps |
| Best Sellers Rank | 9,826 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 21 in Industrial Power Supply |
| Brand Name | LONGWEI |
| Colour | White |
| Connector Types | terminals or banana plugs |
| Country of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (226) |
| Enclosure Material | Aluminium |
| Form Factor | Benchtop power supply |
| Input Voltage | 240 Volts (AC) |
| Item Dimensions | 22 x 7 x 16 centimetres |
| Manufacturer | LONGWEI |
| Manufacturer Part Number | K3010D White UK |
| Maximum Power | 300 Watts |
| Model Number | LW-K3010D |
| Output Current | 10 Amps |
| Output Voltage | 30 Volts |
| Output Wattage | 300 Watts |
| UPC | 643858047676 |

## Product Details

- **Brand:** LONGWEI
- **Colour:** White
- **Connector type:** terminals or banana plugs
- **Input voltage:** 240 Volts (AC)
- **Material:** Aluminium

## Images

![Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display - Image 1](https://m.media-amazon.com/images/I/61jeFLyqZtL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Is it really ce certified or only with "fake ce", i.e. china export?
people don't realize the difference but it is crucial.**
A: That is true. We have CE certification, FCC certification and Rosh lead-free certification for all dc power supply products  .  we can provide it to you If you need PDF file certificate,  thank you.

**Q: Whats the voltage ripple & noise on this?**
A: Just measured them for you, the CV less than 1mv, CC less than 3ma

**Q: Is it cc and cv ?**
A: It is cv

## Customer Reviews

### ⭐⭐⭐⭐⭐ Jolly good
*by G***. on 28 December 2025*

Works fine and erfect for general use.

### ⭐⭐⭐⭐⭐ Great Value and 30v and 10a
*by A***R on 19 April 2025*

It does exactly as described. It saved me from buying 2 new flymo batteries (saving £140+), The charger was a smart one and as they dropped below a certain amount would not charge. 30-60 seconds gave the batteries the charge it needed and was recognised by the supplied smart charger. (please don't copy me, but it worked)

### ⭐⭐⭐⭐ Nice unit and working as intended but useless instructions
*by M***E on 7 May 2025*

Well, initially I was going to leave a negative, 1 star review but... Eventually I persevered and stuck with the unit, fiddling about with the controls as best as I could figure out (not really worth referring to the manual, it's almost useless). The process was a bit hit-and-miss BUT eventually had the unit working as supposed, powering a surplus PC fan. I will attempt to explain at the end. The item was well packaged, compact and a nice looking unit. Process: While unit is OFF and +/- leads attached, turn VOLTAGE to MAX and CURRENT to MIN. Then create a short with the leads (nothing should happen). Turn unit ON - Turn CURRENT to MAX - adjust Voltage to required setting. Current will automatically adjust This is the process I used. Prior to this the voltage dial wouldn't set and fluctuated wildly from 0-20 V (with no between adjustment) leading me to initially think the unit was faulty.

## Frequently Bought Together

- LOGNWEI ® DC Power Supply Variable 30V 10A Bench Power Supply 4-Digital LED Display ，Variable Power Supply for DIY, Electroplating kit，Lab Power Supply with 2 Sets bench power supply leads
- QWORK® 2 Pack 99.9% Pure Copper Metal Sheet Plate, 1mm Thick Processable Copper Plates for DIY Project, Maintenance, Production (200 mm x 100 mm x 1 mm)

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-07-10*