--- product_id: 339353629 title: "UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage**" brand: "uiotec" price: "6 zł" currency: PLN in_stock: false url: https://www.desertcart.pl/products/339353629-uiotec-dc-dc-buck-converter-4-38v-step-down-voltage store_origin: PL region: Poland --- # 4-38V input range 5A max adjustable current 75W max power output UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** **Brand:** uiotec **Price:** 6 zł **Availability:** ❌ Out of Stock ## Summary > ⚡ Power your projects smarter, safer, and stronger with UIOTEC’s ultimate buck converter! ## Quick Answers - **What is this?** UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** by uiotec - **How much does it cost?** 6 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/339353629-uiotec-dc-dc-buck-converter-4-38v-step-down-voltage) ## Best For - uiotec enthusiasts ## Why This Product - Trusted uiotec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Use Marvel:** Ideal for battery charging, solar/wind power systems, and as a robust buck converter module. - • **Dual Mode Indicator:** Instantly know if you’re in constant current or voltage mode with intuitive LED signals. - • **Built-In Safety First:** Advanced short-circuit (8A limit) and over-temperature protection keep your setup safe and reliable. - • **Powerhouse Performance:** Delivers up to 75W and 5A max current—perfect for high-demand projects and LED drivers. - • **Versatile Voltage Control:** Seamlessly step down 4-38V DC input to your exact output needs with precision adjustment. ## Overview The UIOTEC DC-DC Buck Converter is a high-efficiency, adjustable step-down voltage regulator supporting 4-38V input and delivering up to 75W power with 5A max current. Featuring constant current and voltage modes, it includes essential protections like short-circuit and over-temperature safeguards, making it ideal for LED drivers, battery charging, and renewable energy applications. ## Description Parameter Input voltage: 4-38V Output power: 75W(Max) Transfer efficiency: 96%(Max) Output current: adjustabel;5A(Max) Output voltage: 1.25-36V constantly adjustable Input reverse connection protection: NO Short-circuit protection: YES(limited current of 8A) Over-temperature protection: YES(item will stop output automatically) How to set current limits: 1. Adjust constant-voltage potentiometer to make output voltage reach the voltage value which you want. 2. Use 10A multimeter to measure short-circuit output current (directly connect two meters to output interface), at the same time, adjust constant-voltage potentiometer to make output current reach preset over-current protection value. (If the current value multimeter displays is 4A, the maximum current of the module only can be up to 4A; when the current reach 4A, constant-voltage constant-current red indicator light is on, or the light is off) LED indicator light: 1. Red light is on in constant current status and off in constant voltage status. 2. Blue light is on when charging and off when full-charging 3. Green light is on when full-charged. Package includes: 1 X Buck Converter ## Features - input voltage range is DC 4-38V, output current is adjustable, max output current is 5A, max output power is 75W. - Multifunctional: it can be used as buck converter module with over-current protection; it can also be used as high-power LED constant current driver module; what's more, it can be used as battery charger (e.g. nickel-cadmium or nickel-metal hydride battery, lithium batteries), can be used in solar panel/wind turbines etc. - Safe Protection: the buck regulator is designed with short-circuit protection(limit current 8A), over-temperature protection, without input reversed connection protection. - CC & CV: the volt transformer is with two working modes of constant voltage and constant current, which would be indicated by the red led indicator. - Note: please kindly note that when buck converter module is used in more than 3A,35W, please strengthen cooling. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B074LRQD24 | | Brand Name | UIOTEC | | Current Rating | 5 Amps | | Manufacturer | UIOTEC | | Minimum Frequency | 50 Hz | | Model | MNC042518226867505763670 | | Mounting Type | Panel Mount | | Part Number | MPC042518226867505763670 | | Power Source | Battery Powered | ## Product Details - **Brand:** UIOTEC - **Current rating:** 5 Amps - **Manufacturer:** UIOTEC - **Mounting type:** Panel Mount - **Power source:** Battery Powered ## Images ![UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** - Image 1](https://m.media-amazon.com/images/I/61U6Df7xTxL.jpg) ![UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** - Image 2](https://m.media-amazon.com/images/I/61m3xI8mnML.jpg) --- ## 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.pl/products/339353629-uiotec-dc-dc-buck-converter-4-38v-step-down-voltage](https://www.desertcart.pl/products/339353629-uiotec-dc-dc-buck-converter-4-38v-step-down-voltage) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*