--- 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: "117 zł" currency: PLN in_stock: true reviews_count: 13 category: "Valefod" url: https://www.desertcart.pl/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to store_origin: PL region: Poland --- # 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:** 117 zł **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?** 117 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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 Buy [2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: As good as an LM2596 breakout board gets - This is about as good as an LM2596 breakout board gets. The LM2596 in the TO-263 package is designed to dissipate heat through the metal tab on the opposite end of the 5 terminals. Hence heat sinking to a copper sink embedded to the board is the optimal heat dissipation methodology. This board seems to incorporate that primary means of heat dissipation rather well. When I power a Unify Pro32 HV FPV transmitter (0.4 A low power/1.0 A highh power) using my basic LM2596 breakout boards, the LM2596 chip and inductor get pretty hot at high power so I really don't trust those boards much past half of the rating of the LM2596 chip (2A/3A peak). This board, however, performs admirably. At around 1A the board starts to get slightly warm and the upper heat sink is still cool to the touch, unlike my other cheaper LM2596 chip breakout boards which are rather hot at 1 amp. The LED light has input/output/and off modes so once installed in a project, you can turn it off and it stays off on the next power up. Review: Solid. Good buy for stepping down power, in my case, two 18650s to 5v. - These things work amazingly well. I thought the first one didn't work because I had been pressing all kinds of buttons and turning the adjustment screw. If you ever get out of whack, read the input voltage on your multimeter and then the input meter of the buck. They should be the same. Take a voltage test reading at the output and set the digital meter to output, and then adjust the screw until the display matches the multimeter reading. I can't recommend these enough for microcontroller projects where you may want the full voltage of your lipos for motors and only a solid 5V going to the MCU. This does that. ## 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 | #89,026 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #315 in Power Converters | | Date First Available | March 12, 2020 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.13 ounces | | Item model number | VA-0189 | | Manufacturer | Valefod | | Product Dimensions | 2.44 x 1.5 x 0.55 inches | | 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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ As good as an LM2596 breakout board gets *by R***. on July 6, 2024* This is about as good as an LM2596 breakout board gets. The LM2596 in the TO-263 package is designed to dissipate heat through the metal tab on the opposite end of the 5 terminals. Hence heat sinking to a copper sink embedded to the board is the optimal heat dissipation methodology. This board seems to incorporate that primary means of heat dissipation rather well. When I power a Unify Pro32 HV FPV transmitter (0.4 A low power/1.0 A highh power) using my basic LM2596 breakout boards, the LM2596 chip and inductor get pretty hot at high power so I really don't trust those boards much past half of the rating of the LM2596 chip (2A/3A peak). This board, however, performs admirably. At around 1A the board starts to get slightly warm and the upper heat sink is still cool to the touch, unlike my other cheaper LM2596 chip breakout boards which are rather hot at 1 amp. The LED light has input/output/and off modes so once installed in a project, you can turn it off and it stays off on the next power up. ### ⭐⭐⭐⭐⭐ Solid. Good buy for stepping down power, in my case, two 18650s to 5v. *by B***B on March 18, 2025* These things work amazingly well. I thought the first one didn't work because I had been pressing all kinds of buttons and turning the adjustment screw. If you ever get out of whack, read the input voltage on your multimeter and then the input meter of the buck. They should be the same. Take a voltage test reading at the output and set the digital meter to output, and then adjust the screw until the display matches the multimeter reading. I can't recommend these enough for microcontroller projects where you may want the full voltage of your lipos for motors and only a solid 5V going to the MCU. This does that. ### ⭐⭐⭐⭐ 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.pl/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to](https://www.desertcart.pl/products/204266302-2-pack-dc-dc-5a-buck-converter-4-38v-to) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-09*