--- product_id: 45122958 title: "DZS Elec 12A DC-DC Step Down Buck Converter Low Ripple with Heat Sink 4.5V-30V to 0.8V-30V Vehicular Voltage Regulator" brand: "dzs elec" price: "E£ 1756" currency: EGP in_stock: true reviews_count: 8 category: "Dzs Elec" url: https://www.desertcart.com.eg/products/45122958-dzs-elec-12a-dc-dc-step-down-buck-converter-low store_origin: EG region: Egypt --- # 12A max output current Continuously adjustable 0.8V-30V output Enhanced aluminum heat sink for stable temps DZS Elec 12A DC-DC Step Down Buck Converter Low Ripple with Heat Sink 4.5V-30V to 0.8V-30V Vehicular Voltage Regulator **Brand:** dzs elec **Price:** E£ 1756 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and cool confidence! ## Quick Answers - **What is this?** DZS Elec 12A DC-DC Step Down Buck Converter Low Ripple with Heat Sink 4.5V-30V to 0.8V-30V Vehicular Voltage Regulator by dzs elec - **How much does it cost?** E£ 1756 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/45122958-dzs-elec-12a-dc-dc-step-down-buck-converter-low) ## Best For - dzs elec enthusiasts ## Why This Product - Trusted dzs elec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cool & Reliable:** Advanced aluminum radiator keeps temperatures low and stable, ensuring your device runs safely under heavy loads. - • **Built-In Safety Nets:** Short-circuit and over-temperature protections automatically shut down output to safeguard your gear and your peace of mind. - • **Powerhouse Performance:** Delivers up to 12A continuous current with 100W output, scaling to 200W with enhanced cooling—perfect for demanding DIY projects. - • **Ultra-Low Ripple Output:** 50V MLCC chip capacitor combined with high-frequency electrolytic condenser minimizes voltage ripple for clean, stable power. - • **Precision Voltage Control:** Smoothly adjustable output voltage from 0.8V to 30V lets you tailor power delivery exactly to your device’s needs. ## Overview The DZS Elec 12A DC-DC Step Down Buck Converter is a compact, high-efficiency voltage regulator designed for professional-grade DIY and industrial applications. It supports a wide input range (4.5V-30V) and offers a continuously adjustable output voltage from 0.8V to 30V with up to 12A current, delivering up to 100W power (extendable to 200W with enhanced cooling). Featuring an enhanced aluminum heat sink, low ripple output capacitors, and built-in protections against short circuits and overheating, this module ensures stable, reliable, and safe power conversion for everything from vehicular voltage regulation to advanced electronics projects. ## Description Feature: Module Name: 12A DC Step Down Buck Converter Module Type: Non-isolated step-down module Module Size: 60*51*22mm Input Voltage: 4.5V-30V Output Voltage: 0.8V-30V ( continuously adjustable ) Output Current: 0A-12A 100W ( Can be up to 200W if enhance heat dissipation ) Work Temperature: -40 degree to + 80 degree Switching Frequency: 300KHz Transfer Efficiency: 95% (MAX) Short-circuit Protection: Yes (Limited current 14A) Over-temperature Protection: Yes (Automatically shut off the output once over temperature) Reverse Voltage Protection: NO ( If need, please add large current tube.) Connection Mode: Terminals or solder terminals. V-IN for input, V-OUT for output The module has enhanced aluminum radiator and TVS tube, which make sure the work temperature be lower and safer. 50V/MLCC chip capacitor, combined with high frequency low resistance electrolytic condenser, make the output ripple lower. Suitable for DIY of storage battery, power transformers, adjustable voltage regulator, 24V power supply, LED lights power supplies, industrial equipment step-down etc. and other work requirements. 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V and so on. Transfer Efficiency test data: Input 12V, Output 5V/10A, Efficiency 81% Input 12V, Output 5V/6A, Efficiency 86% Input 24V, Output 12V/8A, Efficiency 91% Input 24V, Output 19V/6A, Efficiency 94% Package Include: 1pcs 12A DC Step Down Buck Converter Review: Works amazingly! Stress tested a raspberry pi 5 with cellular modem - Same day shipping, I was able to run a raspberry pi 5 with a 4g lte cellular modem hat along with an nvme drive hat. Stress tested the power with running gemma 4 e2b while mqtt is running from usb from a meshtastic station g2 to the raspberry pi triggering mqtt upload using the cellular modem. Ran 2x 22 awg solder to 5v pins and another 2x to ground pins. Running all demanding processes at once I never got a low voltage warning. The capacitors handled the power spikes from the modem and cpu at the same time. Solid unit. Time will tell how long this will run on a mountain for a super meshtastic repeater node. Review: Works fine, requires many turns of potentiometer counter-clockwise - The output voltage adjustment potentiometer is next to the input voltage posts. When I powered on the supply the input voltage and output voltage were the same. Turning the potentiometer in either direction did not seem to have any effect but I eventually discovered that it needs many turns counter-clockwise before the output voltage started to lower (maybe 50 turns, I am not sure). Then I was able to set the output to the 5.1V that I need for the Raspberry Pi. And it is working great. The heat sinks are connected to the output voltage so be careful not to let anything conductive touch the heat sinks. ## Features - Module Name: 12A DC Step Down Buck Converter - Input Voltage: 4.5V-30V ; Output Voltage: 0.8V-30V( continuously adjustable ); Output Current: 0A-12A 100W ( Can be up to 200W if enhance heat dissipation ) - Short-circuit protection (14A MAX) combined with over-temperature protection (Automatically shut off the output once over temperature), safe and reliable. - Coming with enhanced enhanced aluminum radiator make the work temperature is lower and more stable. 50V/MLCC chip capacitor, combined with high frequency low resistance electrolytic condenser, make the output ripple lower. - TVS tube can effectively prevent surge breakdown voltage, make the work safer and more reliable. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071CWMRYD | | Best Sellers Rank | #399,267 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,790 in Power Converters | | Brand | DZS Elec | | Color | Black Blue | | Customer Reviews | 4.2 out of 5 stars 130 Reviews | | Input Voltage | 30 volts | | Item Dimensions | 2.36 x 2.01 x 0.87 inches | | Item Weight | 3.52 ounces | | Item dimensions L x W x H | 2.36 x 2.01 x 0.87 inches | | Manufacturer | DZS Elec | | Mfr Part Number | 43237-2 | | Model Number | 43237-2 | | Number of Items | 1 | | Number of Packs | 1 | | Output Voltage | 12 volts, 5 volts | | Power Source | DC | | UPC | 786467903718 | | Unit Count | 1 Count | ## Product Details - **Brand:** DZS Elec - **Current Rating:** 10 Amps, 14 Amps - **Mounting Type:** PCB Mount - **Power Source:** DC - **Specification Met:** CE, FCC, RoHS, UL ## Images ![DZS Elec 12A DC-DC Step Down Buck Converter Low Ripple with Heat Sink 4.5V-30V to 0.8V-30V Vehicular Voltage Regulator - Image 1](https://m.media-amazon.com/images/I/715aMR6RD2L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works amazingly! Stress tested a raspberry pi 5 with cellular modem *by A***A on April 6, 2026* Same day shipping, I was able to run a raspberry pi 5 with a 4g lte cellular modem hat along with an nvme drive hat. Stress tested the power with running gemma 4 e2b while mqtt is running from usb from a meshtastic station g2 to the raspberry pi triggering mqtt upload using the cellular modem. Ran 2x 22 awg solder to 5v pins and another 2x to ground pins. Running all demanding processes at once I never got a low voltage warning. The capacitors handled the power spikes from the modem and cpu at the same time. Solid unit. Time will tell how long this will run on a mountain for a super meshtastic repeater node. ### ⭐⭐⭐⭐⭐ Works fine, requires many turns of potentiometer counter-clockwise *by P***S on September 2, 2025* The output voltage adjustment potentiometer is next to the input voltage posts. When I powered on the supply the input voltage and output voltage were the same. Turning the potentiometer in either direction did not seem to have any effect but I eventually discovered that it needs many turns counter-clockwise before the output voltage started to lower (maybe 50 turns, I am not sure). Then I was able to set the output to the 5.1V that I need for the Raspberry Pi. And it is working great. The heat sinks are connected to the output voltage so be careful not to let anything conductive touch the heat sinks. ### ⭐⭐⭐⭐⭐ Hello, don't hook it up backwards, the voltage will be the same regardless of resistor setting.... *by R***D on December 9, 2024* I see so many reviews of people reporting that this converter is broken. I have myself connected the input to the output and the output to the input and the variable resistor doesn't do anything. Note that the variable resister in on the input side and the power led is on the output side. Confusing I know, but the thing works well if you connect it right. I run some high amp astronomy stuff off these in some brutally cold weather. Works great. ## Frequently Bought Together - DZS Elec 12A DC-DC Step Down Buck Converter Low Ripple with Heat Sink 4.5V-30V to 0.8V-30V Vehicular Voltage Regulator - Mallofusa Servo Arm Horn Metal Aluminum 25t for Rc Car Helicopter Round Mg945 Mg995 Mg996 Silver/Red/Blue (Silver) - ELEGOO 5PCS HC-SR04 Ultrasonic Module Distance Sensor Compatible with Arduino UNO MEGA Nano Robot XBee ZigBee --- ## 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.com.eg/products/45122958-dzs-elec-12a-dc-dc-step-down-buck-converter-low](https://www.desertcart.com.eg/products/45122958-dzs-elec-12a-dc-dc-step-down-buck-converter-low) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-09-08*