--- product_id: 74018103 title: "DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current" brand: "drok" price: "9 zł" currency: PLN in_stock: false reviews_count: 8 url: https://www.desertcart.pl/products/74018103-drok-numerical-control-voltage-regulator-adjustable-buck-converter-lcd-display store_origin: PL region: Poland --- # 10-90V Input Range 0-80V Adjustable Output 5.1A Current Limit DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current **Brand:** drok **Price:** 9 zł **Availability:** ❌ Out of Stock ## Summary > 🔌 Power Up Your Projects with Precision! ## Quick Answers - **What is this?** DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current by drok - **How much does it cost?** 9 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/74018103-drok-numerical-control-voltage-regulator-adjustable-buck-converter-lcd-display) ## 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 - • **Safety First:** Built-in protections against over-voltage, over-current, and over-power. - • **Smart Storage:** Store up to 10 preset values for quick access and efficiency. - • **Precision Control:** Experience seamless voltage adjustments with a digital interface. - • **Crystal Clear Display:** Monitor your settings effortlessly with a vibrant LCD screen. - • **Versatile Applications:** Perfect for DIY projects, electronics testing, and more! ## Overview The DROK Numerical Control Voltage Regulator is a state-of-the-art adjustable buck converter that allows users to step down voltage from 10-90V to a customizable output of 0-80V with a maximum current of 5.1A. Featuring a user-friendly LCD display and advanced safety protections, this device is ideal for both professional and hobbyist applications. ## Description Buy DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Nice and steady - This thing rocks! I really like how sturdy it is and the built in protections make it really versatile. I charge battery packs directly with this thing. I power on motors and cameras and laptops and it really does a good job and hasn't complained just yet. I'm really impressed with how steady it can hold the voltage even though the source voltage isn't. I'm powering this thing directly from a rectifying bridge connected to a transformer that is connected directly to AC mains, nothing else. BTW, that brings up one point, finding any kind of DC power source that will come close to the 80v 5amp max is next to impossible here in the US so if you're planning on trying to get up there in the voltages, you might have to make your own power source. I ended up taking a transformer out of an Audio Amp to power mine. P.S it's been a year and it's still working well. For those of you who might be having issues with the higher voltages look closely at the screen and you'll likely see there's a temp failure. There's no audible sound or anything drastic like the whole unit powering off, the device simply powers off the output. A small fan blowing on it is more than enough. I charge ebike battery packs with this all day long at 60 and 72v at all 5 maximum amps and no problems. Review: 1 star and 5 star - Had extremely high hopes. Looks well built, functions are intuitive. I would love love this unit, except that it doesn't reliably work at high voltages. I use it frequently (and reliably), to buck 12 -24 volts down to anything (ie, 6v led lamp). That works. But, when I try to buck 67 volts down to 58v... it will run for a few seconds then shut down. Takes longer to shutdown at lower amperage.. but it still dies. This leads me to believe they may have 'stretched' the voltage specs. Plus, there is a HORRIBLE ripple. They spec 100.. but there's no way.. I don't have a means to measure it, but the ripple is horrific. If you need clean DC on the output.. don't bother. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B3KQ9CZ | | Brand | DROK | | Customer Reviews | 3.9 3.9 out of 5 stars (19) | | Input Voltage | 90 Volts | | Manufacturer | DROK | | Mfr Part Number | 2001801002 | | Output Voltage | 90 Volts | ## Product Details - **Brand:** DROK - **Input Voltage:** 90 Volts - **Output Voltage:** 90 Volts ## Images ![DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current - Image 1](https://m.media-amazon.com/images/I/61g6ZGfa5aL.jpg) ![DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current - Image 2](https://m.media-amazon.com/images/I/51hb53GpHDL.jpg) ![DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current - Image 3](https://m.media-amazon.com/images/I/41UoMC39BvL.jpg) ![DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current - Image 4](https://m.media-amazon.com/images/I/41IW9x+NPYL.jpg) ![DROK Numerical Control Voltage Regulator, Adjustable Buck Converter LCD Display Panel 10-90V Step Down to 0-80V 5.1A Volt Stabilizer Variable Power Supply Board with Constant Voltage Constant Current - Image 5](https://m.media-amazon.com/images/I/41Os0J8OavL.jpg) ## Questions & Answers **Q: I am looking to take power from my solar batteries which varies from 14.6 volts to 12.8 volts and convert it to 13.8 volts to power a small ham radio.** A: You will lose a volt or two from input to output at max setting ie 14.6 volt input will have a max output of about 13.6 volts, and 12.8 volt input will have a max output of about 11.8 volts and 24 volt input will have a max output of around 22 volts. output values are approximate. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice and steady *by D***. on August 31, 2019* This thing rocks! I really like how sturdy it is and the built in protections make it really versatile. I charge battery packs directly with this thing. I power on motors and cameras and laptops and it really does a good job and hasn't complained just yet. I'm really impressed with how steady it can hold the voltage even though the source voltage isn't. I'm powering this thing directly from a rectifying bridge connected to a transformer that is connected directly to AC mains, nothing else. BTW, that brings up one point, finding any kind of DC power source that will come close to the 80v 5amp max is next to impossible here in the US so if you're planning on trying to get up there in the voltages, you might have to make your own power source. I ended up taking a transformer out of an Audio Amp to power mine. P.S it's been a year and it's still working well. For those of you who might be having issues with the higher voltages look closely at the screen and you'll likely see there's a temp failure. There's no audible sound or anything drastic like the whole unit powering off, the device simply powers off the output. A small fan blowing on it is more than enough. I charge ebike battery packs with this all day long at 60 and 72v at all 5 maximum amps and no problems. ### ⭐ 1 star and 5 star *by T***N on February 3, 2019* Had extremely high hopes. Looks well built, functions are intuitive. I would love love this unit, except that it doesn't reliably work at high voltages. I use it frequently (and reliably), to buck 12 -24 volts down to anything (ie, 6v led lamp). That works. But, when I try to buck 67 volts down to 58v... it will run for a few seconds then shut down. Takes longer to shutdown at lower amperage.. but it still dies. This leads me to believe they may have 'stretched' the voltage specs. Plus, there is a HORRIBLE ripple. They spec 100.. but there's no way.. I don't have a means to measure it, but the ripple is horrific. If you need clean DC on the output.. don't bother. ### ⭐⭐ Two Stars *by L***. on June 23, 2018* It worked well until it died after 1 month --- ## 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/74018103-drok-numerical-control-voltage-regulator-adjustable-buck-converter-lcd-display](https://www.desertcart.pl/products/74018103-drok-numerical-control-voltage-regulator-adjustable-buck-converter-lcd-display) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-23*