--- 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: "€ 93.24" currency: EUR in_stock: true reviews_count: 8 category: "Longwei" url: https://www.desertcart.at/products/102179369-longwei-k3010d-4-digit-led-display-dc-power-supply-variable store_origin: AT region: Austria --- # 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:** € 93.24 **Availability:** ✅ In Stock ## Summary > ⚡ Power Precision Meets Sleek Control — Own the Voltage, Own the Moment! ## 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?** € 93.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/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 - • **Stay Cool, Work Harder:** Smart cooling fan activates only when needed, extending lifespan and keeping noise to a minimum. - • **Pinpoint Accuracy at Your Fingertips:** Ultra-fine 0.01V & 0.01A resolution with a crisp 4-digit LED display ensures you never miss a detail. - • **Compact Powerhouse for Every Workspace:** Lightweight (under 2kg) and sleek white frosted metal design fits seamlessly on any bench or desk without clutter. - • **Built for Safety, Designed for Peace of Mind:** Comprehensive protections including over-voltage, over-current, overpower, and over-temperature safeguard your projects and workspace. - • **Ready Out-of-the-Box with Premium Accessories:** Includes high-quality test probes and cables with insulated copper alligator clips—perfect for professional-grade testing and DIY innovation. ## Overview The Longwei K3010D is a compact, high-precision benchtop DC power supply delivering up to 30V and 10A with 0.01 resolution. Featuring a bright 4-digit LED display, intelligent temperature-controlled cooling, and multiple safety protections, it’s engineered for reliability and accuracy in labs, R&D, and professional projects. Its lightweight aluminum body and included premium test accessories make it the go-to tool for millennial professionals demanding performance and style. ## Description Product Description Launched on 2021, LONGWEI K3010D White Series is an DC regulated bench power supply.The maximum output voltage is up to 30V and the current is up to 10A. White frosted metal body and more compact size, looks more cool and dirt resistant.And at the same time,we still see quality reliability as the top priority for DC regulated power supply. The series is equiped with a better materials and upgraded structure which makes it higher reliable and accurate, lower ripple and noise.The new circuit design also makes it perform better in over-voltage, over-current, over power, over heat and protection.Its reliability and versatility make it an indispensable and valuable tool for testing, research projects, etc, and the ideal choice for laboratories, research institutes, and R&D organizations. In the Box 1 x DC Power Supply 1 x Output Power Cord 1 x Input Power Cord 1 x Test probes 1 x User Manual Lightweight, Compact and Portable Weight: 3 lb (1.4kg) Size: 8.6 x 2.7 x 6.3 inch The front area is as small as the cell phone This power supply is light and compact enough to save a lot of space for you Come with a Large LED Display The large 4 LED digital display provides more accurate voltage and current readings. Even in the low-light conditions, you also can easily and accurately read value. Easy to Operate Knob with two functions of coarse and fine adjustment, you can adjust the voltage and current data bit by bit, which allows you to set the desired output resolution quickly and easily in 30V 10A. Cool Shell White frosted metal body and more compact size, looks more cool and dirt resistant. Multiple protection The safety of our customers is our most important thing! K3010D DC power supply can provide a variety of protection, because •Constant current protection •Over temperature protection • Overvoltage protection •Current limit protection Intelligent Cooling Fan Cooling fan will intelligently turn on when the working temperature is more than 122℉/50℃, giving the device longer service life Excellent Accessories Compared with other competitors, Safety is our priority.We provide a high quality set of jumper or tester lines. Please refer to the main figure for detailed parameters. These are good sturdy leads with nice rubber insulation cover and the alligator clips made of copper.The clips had insulators to reduce the possibility of accidental shorting. Good quality leads that work great for moderate to low current testing. These wire are good for up to 15 amps maximum. They are fine for basic electrical testing for things like automotive accessories, as long as whatever you are testing uses a fuse of 15 amps or smaller. Review: Variable Power Supply - Works as expected Review: Great product - Great quality product for the price ## 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 | 4,415 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 8 in Industrial Power Supply | | Brand | LONGWEI | | Brand Name | LONGWEI | | Colour | White | | Connector Types | terminals or banana plugs | | Connector type | terminals or banana plugs | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 231 Reviews | | Enclosure Material | Aluminium | | Form Factor | Benchtop power supply | | Input Voltage | 240 Volts (AC) | | Input voltage | 240 Volts (AC) | | Item Dimensions | 22 x 7 x 16 centimetres | | Manufacturer | LONGWEI | | Manufacturer Part Number | K3010D White UK | | Material | Aluminium | | 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) ![Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display - Image 2](https://m.media-amazon.com/images/I/61nLH69DYTS.jpg) ![Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display - Image 3](https://m.media-amazon.com/images/I/61TcEz16HrS.jpg) ![Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display - Image 4](https://m.media-amazon.com/images/I/71dLIuBAsmL.jpg) ![Longwei K3010D 4-Digit LED Display DC Power Supply Variable, 0-30 V / 0-10 A, 4-Digital LED Display - Image 5](https://m.media-amazon.com/images/I/71aIcX6DGiS.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 ### ⭐⭐⭐⭐⭐ Variable Power Supply *by W***M on 25 May 2026* Works as expected ### ⭐⭐⭐⭐⭐ Great product *by C***N on 14 March 2026* Great quality product for the price ### ⭐⭐⭐⭐ Good value, great bit of kit to have *by S***N on 8 March 2020* This is a great product overall. four things let it down The voltage adjuster is quite course and theres no output off switch like many lab/bench Psu's have. The power probes supplied dont fit the terminals. Voltage and current adjusters dont have a lock ability accidental over voltage is a worry sometimes if you knock or catch the pots. Plus points. 10A output Reasonably clean output not perfect. Typical smpsu characteristics. Light and good size footprint on a valuble space workbench Runs reasonably cool Fan not overly noisy. Cost pretty good value for money. ## 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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/102179369-longwei-k3010d-4-digit-led-display-dc-power-supply-variable](https://www.desertcart.at/products/102179369-longwei-k3010d-4-digit-led-display-dc-power-supply-variable) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-25*