--- product_id: 204266302 title: "[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display" brand: "valefod" price: "106.91 DT" currency: TND in_stock: true reviews_count: 13 category: "Valefod" url: https://www.desertcart.tn/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to store_origin: TN region: Tunisia --- # 5A max output current 4-38V input range 1.25-36V adjustable output [2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display **Brand:** valefod **Price:** 106.91 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects like a pro—precision voltage, zero compromise! ## Quick Answers - **What is this?** [2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display by valefod - **How much does it cost?** 106.91 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to) ## Best For - valefod enthusiasts ## Why This Product - Trusted valefod brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Dual Pack:** Mini 62x38x14mm size with 2 modules included—ideal for multitasking pros. - • **Real-Time LED Display:** Instant voltage feedback with LED indicators keeps you in control and confident. - • **Wide Input Flexibility:** Supports 4V to 38V input, perfect for diverse electronic projects and power sources. - • **Precision Power Control:** High-Q inductors & solid capacitors filter noise for ultra-stable voltage output. - • **Effortless DIY Adjustment:** Smooth potentiometer tuning lets you dial in exact voltage with simple screwdriver turns. ## Overview This 2-pack DC-DC buck converter delivers a robust 5A output with a wide 4-38V input range and finely adjustable 1.25-36V output. Engineered with thickened PCBs, high-Q inductors, and solid capacitors, it ensures low noise and stable voltage for demanding electronics. Compact and user-friendly, it features an LED display for real-time voltage monitoring and a precision potentiometer for easy tuning—perfect for millennial makers and tech managers who demand reliability and control in their power solutions. ## Description Product description Features - High power DC-DC step-down module - Thickened circuit boards - Advanced solid-state capacitor - Short circuit and over-temperature protection - 100% tested, sealed in anti-static packaging Kindly Note 1. Input voltage must be 1.5 V higher than the output voltage, no boost 2. Do not reverse the input and output interface 3. Keep output under 5A (or 75W), and use a heat sink when for a long time working 4. The factory settings stay a high voltage, you may need to contrarotate the screw on blue potentiometer about 7-15 circles before the output voltage changes How to Calibrate the Digital Tube Voltmeter (Optional steps for the person who need a highly accurate voltage value) 1. Short press the left "ON/OFF" button to start up the digital tube voltmeter. Long press(>1s, 4 seconds) the left button to enter self-calibration of voltage measurement(calibration range: -0.5-0.5V, factory setting is 0.0). "IN" indicator lights = input voltage measurement calibration starts. Then, long press(>2 seconds) the right "Mode" button, "OUT" indicator lights = output voltage measurement calibration starts. Tap the left / right button to reduce / rise by one unit (since the voltage value of one unit is less than 0.1V, you need to 1-5 times tap the button continuously, so that the voltmeter can change by 0.1V) 3. After calibration, long press(>2 seconds) the right "Mode" button to preserve the adjusted value(no loss with outage) and back to normal voltage display. Specifications - Model: Xl4015E / Digital Tube Voltmeter - Input Voltage: DC 4V - 38V - Output Voltage: DC 1.25V - 36V (adjustable) - Output Current: 0-5A ( recommended working current <4.5A) - Conversion Efficiency: 96% (max.) - Switching Frequency : 180KHz - Operating Temperature: -45℃ to +85℃ - Size(L x W x H): 62*38*14mm - Weight: 32g Package List 2x DC-DC buck converter module with LED display 8x Copper cylinder / screw nut 2x Heat sink Review: Easy to install - Easy to use works well Review: Nailed it!!! - This DC voltage regulator is absolutely spot on! I have a 24vDC source, and I needed to step down to a pretty precise 7.6vDC for 1 component, and I was able to dial it right in! And the display matches my Fluke DMM EXACTLY! I am extremely excited about how great this works for this price!! ## Features - 【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects. - 【Input Voltage】DC 4V to 38V (input voltage must be 1.5V higher than the output voltage, no boost). - 【Output Voltage】DC 1.25V to 36V voltage is continuously adjustable, maximum output current is 5A. - 【Mini Size】62*38*14 mm (with potentiometer). 2 sets included. - 【Easy to DIY】Connect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B085T73CSD | | Best Sellers Rank | #88,382 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #326 in Power Converters | | Brand | Valefod | | Brand Name | Valefod | | Current Rating | 5 Amps | | Customer Reviews | 4.3 out of 5 stars 324 Reviews | | Item Dimensions D x W x H | 2.44"D x 1.5"W x 0.55"H | | Item Weight | 32 Grams | | Manufacturer | Valefod | | Maximum Frequency | 180 KHz | | Minimum Frequency | 180 KHz | | Model | VA-0189 | | Mounting Type | PCB Mount | | Part Number | VA-0189 | | Power Source | DC | | Product Dimensions | 2.44"D x 1.5"W x 0.55"H | | Specification Met | RoHS | | UPC | 722453988321 | ## Product Details - **Brand:** Valefod - **Current Rating:** 5 Amps - **Mounting Type:** PCB Mount - **Power Source:** DC - **Product Dimensions:** 2.44"D x 1.5"W x 0.55"H ## Images ![[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display - Image 1](https://m.media-amazon.com/images/I/81B5cVzimsL.jpg) ![[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display - Image 2](https://m.media-amazon.com/images/I/710MizZKJhL.jpg) ![[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display - Image 3](https://m.media-amazon.com/images/I/71rvtEumD4L.jpg) ![[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display - Image 4](https://m.media-amazon.com/images/I/81WzdNu4lqL.jpg) ![[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display - Image 5](https://m.media-amazon.com/images/I/71n8i-6Pb5L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to install *by M***G on May 3, 2026* Easy to use works well ### ⭐⭐⭐⭐⭐ Nailed it!!! *by B***T on October 4, 2025* This DC voltage regulator is absolutely spot on! I have a 24vDC source, and I needed to step down to a pretty precise 7.6vDC for 1 component, and I was able to dial it right in! And the display matches my Fluke DMM EXACTLY! I am extremely excited about how great this works for this price!! ### ⭐⭐⭐⭐ Good Value Step Down Voltage convertor *by S***R on June 23, 2023* My #1 complaint about Asian modules is the complete specifications are not readily available. They usually use the chip maker's reference circuit, so you can sometimes get close by looking up the device datasheet, the module is built from (XL4015E1). XLSEMI was not too helpful in this case. The duty cycle is 100%. The total design power (?) They don't say, but it is "Internally Limited". Cooling requirements (?) They don't say, but it has "Thermal Shutdown". How fast does the output voltage react to load changes (?) There is no chart. The efficiency exceeds 80% . Value wise, these are great. You could not make anything like it for $7 each, if you made it yourself, because your time is worth something. I am using these to supply power to a solar array, remote monitoring hardware. The AC inverter could do it easily, but running the instrumentation from the batteries allows the inverter to be placed in standby, saving energy. One suggestion to the manufacturer, would be to raise the LED display 6 mm above the current location, so it would be easier to put the device in a protective enclosure. Cheap way to get the voltage from what you have, to what you need. ## Frequently Bought Together - [2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - ELEGOO MEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant --- ## 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.tn/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to](https://www.desertcart.tn/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-01*