--- product_id: 258927956 title: "4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module" brand: "atnsinc" price: "145.30 DT" currency: TND in_stock: true reviews_count: 13 category: "Atnsinc" url: https://www.desertcart.tn/products/258927956-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage store_origin: TN region: Tunisia --- # 3-40V input range Up to 3A max current Adjustable 1.5-35V output 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module **Brand:** atnsinc **Price:** 145.30 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and efficiency—because your gear deserves the best! ## Quick Answers - **What is this?** 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module by atnsinc - **How much does it cost?** 145.30 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/258927956-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage) ## Best For - atnsinc enthusiasts ## Why This Product - Trusted atnsinc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **User-Friendly Setup:** Plug, power, and adjust with confidence—LED indicator and dummy-proof design make voltage regulation hassle-free. - • **Compact 4-Pack Value:** Four modules in one set to power multiple devices or projects simultaneously—upgrade your toolkit instantly. - • **Wide Input Compatibility:** Supports a broad 3-40V DC input range, perfect for diverse power sources from batteries to adapters. - • **Precision Voltage Control:** Easily dial in your exact voltage with a smooth potentiometer knob for flawless power tuning. - • **High Efficiency Power Conversion:** Optimized LM2596 chip ensures minimal energy loss, keeping your projects cool and efficient. ## Overview The 4Pack LM2596 DC-DC Buck Converter offers adjustable step-down voltage regulation from 3-40V input to 1.5-35V output, supporting up to 3A current with high efficiency. Ideal for professionals and hobbyists needing reliable, compact power supply modules, this set includes four tested units with easy-to-use potentiometers and LED indicators for precise voltage control. ## Description Buy ATNSINC 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Works well. Easy to adjust. - Pretty much dummy-proof. Does what it says; easy to adjust the voltage. Review: Good product. Works as expected. - Using this to take 2x18650 battery (8v+) down to 5V. Very good accuracy. Working just like it should. ## Features - The input voltage: DC 3 -40 V (Input voltage must be 1.5 V higher than the output voltage, no boost.) - The output voltage: DC 1.5 - 35 V adjustable. - The output current: It is recommended to use under 2A, maximum 3A(Additional heatsink is required). - Steps: 1. Plugged into a power supply (3-40v), the power indicator light is lit, the module to work properly. 2. Adjust the blue potentiometer knob (generally booster clockwise, counterclockwise step-down) with a multimeter monitoring the output voltage to the voltage. - Package includes:4XLM2596 DC-DC buck converter module（Note：The factory have tested these at max voltage so they are very high by default, takes about 15-20 turns CCW before the voltage starts ramping down) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08L5VRBZS | | Best Sellers Rank | #662,405 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,046 in Power Converters | | Customer Reviews | 4.5 4.5 out of 5 stars (134) | | Date First Available | October 14, 2020 | | Item Weight | 1.41 ounces | | Item model number | LM2596 -19000 | | Manufacturer | ATNSINC | | Product Dimensions | 3.94 x 7.87 x 14.57 inches | | UPC | 701715445123 | ## Product Details - **Brand:** ATNSINC - **Current Rating:** 3 Amps - **Mounting Type:** PCB Mount - **Power Source:** DC - **Specification Met:** CE ## Images ![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 1](https://m.media-amazon.com/images/I/71hH9gLJFKL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well. Easy to adjust. *by A***D on November 2, 2024* Pretty much dummy-proof. Does what it says; easy to adjust the voltage. ### ⭐⭐⭐⭐⭐ Good product. Works as expected. *by S***T on August 5, 2022* Using this to take 2x18650 battery (8v+) down to 5V. Very good accuracy. Working just like it should. ### ⭐⭐⭐⭐⭐ Repurposes wall wart power supplies and solar lights *by R***M on October 15, 2021* Cheap solution to reoccuring problem. I used an old wall charger to convert a solar LED light over to electric so I can use it in an area that doesn't get much sunlight. The photo doesn't show the brightness very well. Since the output voltage is adjustable, you can adjust the brightness of the lights. Now our shaded patio can have lots of fun lights! ## Frequently Bought Together - ATNSINC 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - 10 Pairs 12V 5A DC Power Plug Connector 5.5mm x 2.1mm, (10 x Male and 10 x Female) Power Jack for Led Strip CCTV Security Camera Cable Wire Ends Barrel Adapter by CENTROPOWER - 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 --- ## 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/258927956-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage](https://www.desertcart.tn/products/258927956-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-04*