--- product_id: 206202711 title: "DC PWM Motor Controller——Standard" brand: "harmnee" price: "€ 40.75" currency: EUR in_stock: null reviews_count: 10 category: "Harmnee" url: https://www.desertcart.de/products/206202711-dc-pwm-motor-controller-standard store_origin: DE region: Germany --- # 40A rated current LED speed display Forward-Brake-Reverse switch DC PWM Motor Controller——Standard **Brand:** harmnee **Price:** € 40.75 **Availability:** ❌ Out of Stock ## Summary > ⚙️ Command your motor’s speed and direction like a pro—no compromises, just pure control. ## Quick Answers - **What is this?** DC PWM Motor Controller——Standard by harmnee - **How much does it cost?** € 40.75 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/206202711-dc-pwm-motor-controller-standard) ## Best For - harmnee enthusiasts ## Why This Product - Trusted harmnee brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Directional Mastery:** Intuitive forward, brake, and reverse switch gives you full control over motor rotation direction. - • **Built to Last & Cool:** Durable aluminum enclosure with strategic ventilation ensures superior heat dissipation and long-term reliability. - • **Versatile Application:** Perfect for brush motor speed regulation and light dimming in DC circuits—engineered for professional-grade projects. - • **Powerhouse Performance:** Handles up to 40A rated current with a max surge of 60A for demanding DC motor tasks. - • **Seamless Speed Control:** Stepless potentiometer knob lets you dial motor speed smoothly from 0% to 100%, visible on a crisp LED display. ## Overview This PWM DC Motor Speed Controller supports DC 10-55V input with a robust 40A rated current and 60A max surge. Featuring a stepless potentiometer and LED display, it offers precise speed adjustment from 0% to 100%. The forward-brake-reverse switch enables easy directional control. Housed in a ventilated aluminum enclosure, it ensures excellent heat dissipation for reliable performance in brush motor and light dimming applications. ## Description PWM DC Motor Speed Controller, DC 10-55V / Rated 40A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch - desertcart.com Review: Impressive results, right out of the box! - I was really impressed with this item! It came with connectors and a couple little extras. After about 10 mins of setup, not only did it look slick, but, it functions EXACTLY as described! Just what I needed for my highbanker pump! For anyone here doing the a similar project: - (x1) Harmnee Controller - (x1) Prospector's Dream Bac-Pac series highbanker. - (x1) 2,000 gph bilge pump - (x1) 12v 20ah Dakota Lithium battery - Misc. roll of 16ga wire. I've run it in the bath tub for over an hour, at all different speeds. Haven't had a single hiccup! Taking it to the woods in two days for real world testing but, I imagine everything will be great! Review: Reduced Amerage Rating Required - We have purchased three different DC controllers for this project. The first two were from China and rated at 30 amps. They both got very hot and failed at 10 amps. We subseuently purchased this controller, which was more sophisticated and had nice remote controls and a speed or percent power indicator. This one is rated at 40 amps, whereas our application required 12 amps, so we intended to run it at about 30% or rated output. At 12 amps, this one also got hot but didnot burn out. We reduced the running amperage to 10 amps and the device did not reach a failure temperature level. We will build this unit into our product but reduce the rating to maximum of 15 amps rather than the published 40 amps. The controls and indicator are very well done. ## Features - ♕【Technical Parameters】 Input supply voltage: DC 10V-55V; Rated current: 40A; Max current: 60A; Speed range: 0%-100% ; Apply to: DC Brush Motor - ♕【CW/CCW Function】The switch can provide clockwise and counter clockwise rotation choice. With this latching switch, you can control the rotation direction easily. - ♕【Excellent Heat Dissipation Performance】 The enclosure of the speed controller for motor is an aluminum enclosure. Aluminum shell is very strong to prevent damage, holes on its side and top which are helpful for heat dissipation. - ♕【Easy to Operate】The stepless motor controller has a simple potentiometer knob adjusts the motor speed from 0% ~ 100% smoothly. LED display screen shows the motor speed from 0% to 100% of the rated speed. - ♕【Application】 The DC motor driver can be used on brush motor speed regulation, light dimming regulation in the DC circuit. Note: The motor can not be used in electric vehicles. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089273KVZ | | Batteries Included? | No | | Batteries Required? | Yes | | Best Sellers Rank | #36,739 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Electrical Motor Controls | | Customer Reviews | 4.0 4.0 out of 5 stars (584) | | Date First Available | May 26, 2020 | | Display Type | LED | | Item Package Quantity | 1 | | Item Weight | 8.3 ounces | | Item model number | Standard 10-55V/60A Max | | Manufacturer | WellHome Innovation | | Part Number | Standard 10-55V/60A Max | | Product Dimensions | 3.07 x 4.33 x 1.42 inches | | Style | 40A | ## Product Details - **Brand:** HARMNEE - **Color:** Silver - **Item Weight:** 0.52 Pounds - **Material:** Metal - **Product Dimensions:** 3.1"L x 4.5"W x 1.4"H ## Images ![DC PWM Motor Controller——Standard - Image 1](https://m.media-amazon.com/images/I/71cG3dPGApL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: can this pulse 12v , would it be ble to pulse 12v injector for cleaning ?** A: The voltage of your injector is between our controller voltage range (10~55V). If your injector is with a DC brush motor and the rated current is below the 60A, HARMNEE pwm motor speed controller will fit for your injector. The rated current is equal to the rate of power divided by voltage 12V. **Q: Why is there a 3 way switch for this?** A: one is for turning off the motor and the other two are for forward and reverse. **Q: Can it be used with arduino to control motor speed and direction?** A: I can't imagine why not as long as the Arduino project meets the volt and amp capacities of the Controller. **Q: Lemon? Two right most terminals wired to 20V battery but the voltage across the two left most terminals always 20V no matter the % of pot adjustment.** A: unplug the pot and connect a meter to center leg and either side legs and check ohms clime as you turn the knob. Make sure all connections are correct. If pot works then controller is bad. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Impressive results, right out of the box! *by D***S on April 24, 2025* I was really impressed with this item! It came with connectors and a couple little extras. After about 10 mins of setup, not only did it look slick, but, it functions EXACTLY as described! Just what I needed for my highbanker pump! For anyone here doing the a similar project: - (x1) Harmnee Controller - (x1) Prospector's Dream Bac-Pac series highbanker. - (x1) 2,000 gph bilge pump - (x1) 12v 20ah Dakota Lithium battery - Misc. roll of 16ga wire. I've run it in the bath tub for over an hour, at all different speeds. Haven't had a single hiccup! Taking it to the woods in two days for real world testing but, I imagine everything will be great! ### ⭐⭐⭐⭐⭐ Reduced Amerage Rating Required *by E***G on July 20, 2025* We have purchased three different DC controllers for this project. The first two were from China and rated at 30 amps. They both got very hot and failed at 10 amps. We subseuently purchased this controller, which was more sophisticated and had nice remote controls and a speed or percent power indicator. This one is rated at 40 amps, whereas our application required 12 amps, so we intended to run it at about 30% or rated output. At 12 amps, this one also got hot but didnot burn out. We reduced the running amperage to 10 amps and the device did not reach a failure temperature level. We will build this unit into our product but reduce the rating to maximum of 15 amps rather than the published 40 amps. The controls and indicator are very well done. ### ⭐ Not durable *by M***R on August 27, 2025* Have purchased two of these and both broke within weeks of only a couple of uses. The first one stopped providing power to the motor and the second one lost speed control with it running full out. ## Frequently Bought Together - PWM DC Motor Speed Controller, DC 10-55V / Rated 40A / Max 60A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch - Junction Box, Zulkit Project Box IP65 Waterproof Outdoor Box ABS Plastic Electrical Boxes Electronic Enclosure Black 7.9 x 4.7 x 2.95 inch (200 x 120 x 75mm) - Haoguo Steering Triangle Compatible with Newport NK-180S Brushless Kayak Motor, Stainless Steel Structure, Anti-Rust, Easy Installation --- ## 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.de/products/206202711-dc-pwm-motor-controller-standard](https://www.desertcart.de/products/206202711-dc-pwm-motor-controller-standard) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-04-25*