--- product_id: 432129777 title: "LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs)" brand: "eplzon" price: "฿854" currency: THB in_stock: true reviews_count: 5 category: "Eplzon" url: https://www.desertcart.co.th/products/432129777-lm2596-buck-converter-with-voltmeter-display-dc-dc-4-0 store_origin: TH region: Thailand --- # 92% max efficiency 1.25-37V adjustable output -45°C to 85°C operating range LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs) **Brand:** eplzon **Price:** ฿854 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects smarter, not harder! ## Quick Answers - **What is this?** LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs) by eplzon - **How much does it cost?** ฿854 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/432129777-lm2596-buck-converter-with-voltmeter-display-dc-dc-4-0) ## Best For - eplzon enthusiasts ## Why This Product - Trusted eplzon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Durability:** Built on a thickened 36μ PCB with solid-state capacitors and high-Q inductors for reliable, noise-free performance. - • **Smart Safety Features:** Integrated overheat, short circuit, and reverse polarity protection safeguard your projects and investments. - • **Precision Voltage Control:** Continuously adjustable output from 1.25V to 37V lets you tailor power delivery with exacting accuracy. - • **Real-Time Voltage Monitoring:** Onboard LED voltmeter display with easy calibration keeps you informed and in control at all times. - • **High-Efficiency Power Conversion:** Achieve up to 92% efficiency with a 150KHz switching frequency, minimizing energy loss and heat generation. ## Overview The EPLZON LM2596 Buck Converter is a high-performance DC-DC step-down module featuring a wide input range (4-40V) and a finely adjustable output voltage (1.25-37V) with up to 3A max current. Designed with a thickened PCB, solid-state capacitors, and a high-Q inductor, it delivers up to 92% conversion efficiency while maintaining low ripple and noise. Safety is paramount with built-in protections against overheating, short circuits, and reverse polarity. The integrated LED voltmeter display offers real-time voltage feedback, making it an essential tool for precision electronics projects and power management solutions. ## Description EPLZON LM2596 With LED Voltmeter Display Buck Converter Specifications: ●Model: LM2596 buck converter ●Input voltage: DC 4V - 40V ●Output Voltage: DC 1.25V - 37V (adjustable) ●Output Current: 3A (max.) ● Conversion Efficiency: 92% (max.) ●Size(L x W x H): 65*39*11mm Features: ▲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 How to Calibrate the Digital Tube Voltmeter (Optional steps for the person who need a highly accurate voltage value) ➤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) ➤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. Kindly Note: ☑ Input voltage must be 1.5 V higher than the output voltage, no boost ☑ Do not reverse the input and output interface ☑Keep output under 2A (or 15W), and use a heat sink when for a long time working Package List: ✔2x DC-DC Buck Converter Module with LED Display Review: Good Quality for the price Review: Great product ## Features - The buck converter consists of a 36u thickened circuit board, a high-Q inductor with an output LED indicator, and a high-quality solid-state capacitor that can effectively filter out high-frequency noise - Product parameters: the input voltage is DC 4.0~40V, the output voltage is 1.25V-37V (continuously adjustable, the input voltage must be 1V higher than the output voltage), the output current is 2A (normal and stable), the maximum is 3A, and the conversion efficiency is 92% ( maximum), the output ripple is less than 30mV, the switching frequency is 150KHz, and the operating temperature is -45°C to 85°C. - NOTE: This is a buck module. The input and output connectors cannot be reversed. The input voltage must be higher than the output voltage. A radiator is required for long-term work above 2A/15W. When using it for the first time, it is necessary to turn the potentiometer counterclockwise more than 10 times. - High efficiency: 150KHz internal oscillation frequency, low power consumption, high efficiency. The conversion efficiency is as high as 92%. The input terminal is protected by a diode, and the reverse connection will not burn the module. With overheat protection and short circuit protection - Application: The LM2596 step-down converter can be used in fields where the input voltage is higher than the step-down output voltage, such as batteries, power transformers, etc. Buck modules can be used in many electronics projects. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09R49R76K | | Best Sellers Rank | #123,014 in Home Improvement ( See Top 100 in Home Improvement ) #673 in International Power Adapters | | Brand | EPLZON | | Brand Name | EPLZON | | Country of Origin | China | | Current Rating | 3 Amps | | Customer Reviews | 4.3 out of 5 stars 125 Reviews | | Item Weight | 0.09 Kilograms | | Manufacturer | EPLZON | | Maximum Frequency | 150 KHz | | Minimum Frequency | 150 KHz | | Model Number | EP-LM-2596 | | Mounting Type | PCB Mount | | Part Number | EP-LM-2596 | | Power Source | DC | | Power Source Type | DC | | Specification Met | RoHS | | UPC | 762917045566 | ## Product Details - **Brand:** EPLZON - **Current Rating:** 3 Amps - **Mounting Type:** PCB Mount - **Power Source:** DC - **Specification Met:** RoHS ## Images ![LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs) - Image 1](https://m.media-amazon.com/images/I/71teGJqFeVL.jpg) ![LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs) - Image 2](https://m.media-amazon.com/images/I/61sNwQDDsTL.jpg) ![LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs) - Image 3](https://m.media-amazon.com/images/I/51tvrP4tJsL.jpg) ![LM2596 Buck Converter With Voltmeter Display - DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Module (Pack of 2 Pcs) - Image 4](https://m.media-amazon.com/images/I/61F2dtsVYRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Quality for the price *by J***E on 17 November 2023* ### ⭐⭐⭐⭐⭐ Great product *by R***Z on 25 August 2025* ### ⭐⭐⭐⭐⭐ Provides LM2596 datasheet performance *by M***R on 10 October 2024* ## Frequently Bought Together - EPLZON LM2596 Buck Converter with Voltmeter Display Buck Module DC-DC 4.0-40V to 1.25-37V 2A Voltage Adjustable Buck Converter Module(Pack of 2 Pcs) - Acxico 3Pcs Mini Micro N20 Gear Motor DC 3V-6V Slow Speed Full Metal Gearbox DIY Robot Car - WWZMDiB L298N Stepper Motor DC Dual H-Bridge Driver Controller Board Module for Arduino Raspberry Pi (2Pcs L298N) --- ## 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.co.th/products/432129777-lm2596-buck-converter-with-voltmeter-display-dc-dc-4-0](https://www.desertcart.co.th/products/432129777-lm2596-buck-converter-with-voltmeter-display-dc-dc-4-0) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*