--- product_id: 428330308 title: "DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module" brand: "drok" price: "VT12125" currency: VUV in_stock: true reviews_count: 5 category: "Drok" url: https://www.desertcart.vu/products/428330308-drok-buck-converter-12v-to-5v-voltage-regulator-board-dc store_origin: VU region: Vanuatu --- # Input 6.5-36V DC range LCD shows voltage & current Output 1.2-32V adjustable DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module **Brand:** drok **Price:** VT12125 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and confidence — never settle for less! ## Quick Answers - **What is this?** DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module by drok - **How much does it cost?** VT12125 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/428330308-drok-buck-converter-12v-to-5v-voltage-regulator-board-dc) ## Best For - drok enthusiasts ## Why This Product - Trusted drok brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built-in Safety:** Reverse polarity protection safeguards your device from input mishaps. - • **Dynamic LCD Display:** Real-time input/output voltage, current, and power monitoring with 0.05V/0.005A resolution. - • **Robust Power Handling:** Stable 3.5A continuous current, peaks at 4.5A with enhanced heat dissipation for demanding projects. - • **Compact & Customizable:** Sleek 70.5x48.4x28mm form factor with configurable default power-on state for seamless integration. - • **Precision Voltage Control:** Easily set output voltage with intuitive button—no screwdriver needed. ## Overview The DROK Buck Converter is a versatile DC-DC step-down voltage regulator supporting 6.5-36V input and adjustable 1.2-32V output, delivering up to 4.5A current with 75W max power. Featuring an easy-to-use button interface and an LCD screen for precise voltage and current readouts, it ensures efficient (94%) and safe operation with reverse polarity protection. Its compact design and customizable default power state make it ideal for professional-grade electronics and DIY power management. ## Description DROK 12V to 5V Converter Parameters: Input Voltage: 6.5-36V (if the input voltage is lower than 6.5v, current accuracy will be inaccurate; LCD display panel will not show anything if it is lower than 5.5V) Output Voltage: 1.2-32V, factory default output 5v Output Current: can work stably at 3.5A for a long time, and can reach 4.5A under the heat dissipation (adjustable current limit is about 4.2-4.5A) Output Power: 50W(natural heat dissipation, within 3.5A); 75W(enhanced heat dissipation) Voltage Display: resolution is 0.05V, display range is 1.2-32V, accuracy is ±0.1V Current Display: resolution is 00005A, display range is 0-4.5A, accuracy is ±0.05A Conversion Efficiency: about 94% Working Current: about 30mA Input Reverse Connection Protection: Yes Output Anti-backflow: No (When charging the battery, you should electrify the module and then connect it to the battery, and make sure that the battery voltage is lower than the output voltage. If allowed, please connect output anode to the anti-backflow diode in series.) Size: 70.5 * 48.4 * 28mmNotes: 1. The input IN- can't short-circuit to the output OUT-, otherwise, the constant current function will not work. 2. Please ensure that the power of the power supply is larger than the power required by the output load. If the module is hot, please reduce the power usage. 3. Please read the instructions carefully before using it.Package Included: 1 x Buck Converter 12v to 5v Review: Works as described, nice compact size for a portable variable power supply. Good value for this item. Review: Delivery and product quality A+++. Thank you ## Features - DROK buck converter input voltage range is DC 6.5V-36V; output voltage range is DC 1.2V-32V, factory default output 5V; can work stably at 3.5A for a long time, and can reach 4.5A under the heat dissipation (adjustable current limit is about 4.2-4.5A). - Button Control: the voltage regulator board is designed with button, you can easily set the output voltage without using flat screwdriver; the button control output voltage ON / OFF status, and you can set the default output state is ON or OFF of the next time power-on. - LCD Display: the step down module is designed with LCD, can display input and output voltage, output current and output power; voltage display resolution is 0.05V, current display resolution is 0.005A. Please note that the volt display accuracy is ±0.1V, the current display accuracy is ±0.05A. - Protection: our power supply is with reverse connection protection at the input terminal, please kindly note that NO Anti-backflow protection at the output terminal; with crystal protection case, protect the module from damaging. - Note: To avoid damage caused by collision during shipping, the case is not installed when we package, it is packed as parts. Please install it after receiving. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07FL6PBZF | | Best Sellers Rank | 128,644 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,666 in International Power Adapters | | Brand Name | DROK | | Colour | clear black | | Customer Reviews | 4.2 4.2 out of 5 stars (1,071) | | Input Voltage | 36 Volts | | Item Weight | 2.82 Ounces | | Manufacturer | DROK | | Manufacturer Part Number | 200359 | | Model Number | 200359 | | Number of Outlets | 1 | | Output Voltage | 5 Volts | | Plug Type | Type A | | Power Source | Battery Powered | ## Product Details - **Brand:** DROK - **Colour:** clear black - **Input voltage:** 36 Volts - **Item weight:** 2.82 Ounces - **Output voltage:** 5 Volts ## Images ![DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module - Image 1](https://m.media-amazon.com/images/I/711z+7ebvyL.jpg) ![DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module - Image 2](https://m.media-amazon.com/images/I/81PVesA5OHL.jpg) ![DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module - Image 3](https://m.media-amazon.com/images/I/714bn8hVVzL.jpg) ![DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module - Image 4](https://m.media-amazon.com/images/I/71dhJCc8LUL.jpg) ![DROK Buck Converter 12v to 5v, Voltage Regulator Board DC 6.5-36V 24v Step Down to DC 1.2V-32V 12 v Volt Transformer Reducer 4.5A 75W CC CV Power Supply Module - Image 5](https://m.media-amazon.com/images/I/71OEuDsR52L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How would i use this as a constant voltage supply if i don’t want a constant current supply (eg, i don’t want to accidentally spike the output v) ?** A: For me this has been a marvelously useful device. I power it with the charger "brick" from a retired laptop PC, capable of as much as a couple amps at 25VDC. The specifications don't make it clear, but you independently set the maximum output current and output voltage using the on-board 10-turn pots while monitoring it on the display. For example when charging a lithium-ion battery, its specs might suggest a the maximum charging current of 0.5A and maximum output voltage of 4.2V. So first, you set the open-circuit voltage to 4.2V. Turn the output current to minimum and connect the batery. Assuming the battery is pretty well discharged, when you first connect it you could potentially sink as much as several amps but that would hurt the battery. No problem, you've set the current to minimum (a few mA). When you connect the battery, turn up the current to 0.5A; the voltage will rise as you turn up the current, probably settling around 3.5V. (I am assuming that your power source will easily supply the required power.) As the battery charges, the voltage will gradually increase to 4.2V while the current stays at 0.5A. But once the voltage gets close to 4.2V the current will start to taper off. If left for several hours the voltage will still be at 4.2V but the current will be only a few mA. So the supply acts like constant current, then transitions to constant voltage. I hope this answers your question. I haven't seen any evidence of loss of control over either output voltage or current. FYI it's worthwhile to experiment with the unit connected to an output load resistor first, to get an understanding of which buttons to press to read the desired values. From memory, you can read input voltage and current, temperature of the heat sink in F or C, and output voltage and current. And you can also read output voltage independent of supplying power to the load (i.e. it can act like a voltmeter). **Q: What does opp error mean?** A: Dear customer, OPP:Over-power Protection When output power reaches 35W, OPP will be enable. Best regards. **Q: Is there an operating/owners manual** A: Good day. You can get the user manual on product detailed page ---> Product information ---> Technical Specification ---> User Manual [pdf ] You can also get it via the link below: https://images-na.ssl-images-amazon.com/images/I/C1RCvx6bFMS.pdf If there are any problems, please feel free to contact through Amazon's direct messaging service: https://www.amazon.com/ss/help/contact/?_encoding=UTF8&marketplaceID=ATVPDKIKX0DER&ref_=v_sp_contact_seller&sellerID=AFHAE9RJVUMB Best regards. **Q: I need to increase voltage from 11V to 15V, can it do it?** A: Yes this will work. This morning I needed to run 2 12V PC fans from a USB 2.0 port. It worked drawing around 400mA. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***O on 3 March 2026* Works as described, nice compact size for a portable variable power supply. Good value for this item. ### ⭐⭐⭐⭐⭐ Review *by A***9 on 16 February 2021* Delivery and product quality A+++. Thank you ### ⭐⭐⭐⭐⭐ Review *by S***R on 24 March 2026* Priced cheap Works great , has many uses I’m using it as a voltage reducer on 1941 ford instruments 12v to 5v ## Frequently Bought Together - DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart - APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell) - ARRAROWN ZK-1002T 2.0 Channel Bluetooth 5.0 Amplifier Board 200W HiFi Subwoofer Audio AMP with Treble and Bass Control BT and AUX Inputs, DC 12-24V 2.0 Channel Stereo AMP Module for DIY Speakers --- ## 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.vu/products/428330308-drok-buck-converter-12v-to-5v-voltage-regulator-board-dc](https://www.desertcart.vu/products/428330308-drok-buck-converter-12v-to-5v-voltage-regulator-board-dc) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*