--- product_id: 339109805 title: "LONGWEI DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord Used for Spectrophotometer and lab Equipment Repair (Black)" brand: "longwei" price: "€ 128.04" currency: EUR in_stock: true category: "Longwei" url: https://www.desertcart.at/products/339109805-longwei-dc-power-supply-variable-30v-10a-4-digital-led store_origin: AT region: Austria --- # 10A max current output 4-digit high precision LED display 30V adjustable voltage LONGWEI DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord Used for Spectrophotometer and lab Equipment Repair (Black) **Brand:** longwei **Price:** € 128.04 **Availability:** ✅ In Stock ## Summary > ⚡ Power Precision Meets Lab-Grade Reliability – Don’t Get Left in the Dark! ## Quick Answers - **What is this?** LONGWEI DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord Used for Spectrophotometer and lab Equipment Repair (Black) by longwei - **How much does it cost?** € 128.04 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/339109805-longwei-dc-power-supply-variable-30v-10a-4-digital-led) ## 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 - • **Compact Powerhouse:** Lightweight (under 2kg) and sleek design fits perfectly in any lab or workspace. - • **Cool & Quiet Operation:** Smart temperature-controlled fan with heat dissipation grooves ensures silent, efficient cooling. - • **Built to Last & Protect:** Advanced multi-layer safety features including overpower and over-temperature protection. - • **Ready for Any Challenge:** Complete with test probes, power cords, and backed by 12-month support & lifetime tech help. - • **Precision at Your Fingertips:** Ultra-fine 0.01V/0.01A resolution for exact voltage and current tuning. ## Overview The LONGWEI K3010D is a compact, high-precision 30V/10A DC power supply featuring a 4-digit LED display for accurate voltage and current control. Engineered with robust safety protections and intelligent cooling, it’s ideal for lab, DIY electronics, and repair work. Lightweight and complete with all necessary leads, it offers professional-grade performance with peace-of-mind support. ## Description Buy LONGWEI DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord Used for Spectrophotometer and lab Equipment Repair (Black): Power Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## 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, The power supply 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 laboratory, school, home, electronic repair DIY, aging test and other requirements thanks to complete test probes and output cable with alligator clips. - 【What You Get & SERVICE】1 x K3010D 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B092DCM46L | | Amperage | 10 A | | Best Sellers Rank | #48,481 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #32 in Lab Power Supplies #61 in Life Science Supplies | | Brand | LONGWEI | | Color | Black | | Connector Type Used on Cable | Barrel Connector | | Customer Reviews | 4.4 4.4 out of 5 stars (1,154) | | Enclosure Material | Aluminum | | Form Factor | Box-shaped | | Input Voltage | 240 volts_of_alternating_current | | Item Dimensions | 8.66 x 2.76 x 6.3 inches | | Manufacturer | LongWei Ltd. | | Maximum Power | 300 watts | | Mfr Part Number | K3010D Black US | | Model Number | K3010D | | Output Current | 10 A | | Output Voltage | 30 volts | | Output Wattage | 300 watts | ## Product Details - **Brand:** LONGWEI - **Color:** Black - **Connector Type:** Barrel Connector - **Input Voltage:** 240 volts_of_alternating_current - **Material:** Aluminum ## Images ![LONGWEI DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord Used for Spectrophotometer and lab Equipment Repair (Black) - Image 1](https://m.media-amazon.com/images/I/61Nnzxs4BgL.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - DC Power Supply Variable,30V 10A 4 Digital LED Display Adjustable Regulated Switching Power Supply Digital with Leads Power Cord (30V 10A Black) Used for Spectrophotometer and lab Equipment Repair - 3120pcs 156 Values Metal Film Resistor Kit Minidodoca 1 Ohm-10M Ohm 1/4W 0.25 watt ±1% Tolerance Fixed Resistors Assortment Kit RoHS Compliant 100 1000 1k 10k 100k ohm Resistor Pack for DIY Projects - REXQualis Electronics Component Fun Kit w/Power Supply Module, Jumper Wire, 830 tie-Points Breadboard, Precision Potentiometer,Resistor Compatible with Arduino, Raspberry Pi, STM32 --- ## 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/339109805-longwei-dc-power-supply-variable-30v-10a-4-digital-led](https://www.desertcart.at/products/339109805-longwei-dc-power-supply-variable-30v-10a-4-digital-led) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-17*