can this pulse 12v , would it be ble to pulse 12v injector for cleaning ?

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.

Why is there a 3 way switch for this?

one is for turning off the motor and the other two are for forward and reverse.

Can it be used with arduino to control motor speed and direction?

I can't imagine why not as long as the Arduino project meets the volt and amp capacities of the Controller.

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.

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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

PWM DC Motor Speed Controller, DC 10-55V / Rated 40A / Max 60A LED Display Stepless DC Motor Controller with Adjustable Potentiometer & LED Display Screen & Forward-Brake-Reverse Switch

PWM DC Motor Speed Controller, DC 10-55V / Rated 40A / Max 60A LED Display Stepless DC Motor Controller with Adjustable Potentiometer & LED Display Screen & Forward-Brake-Reverse Switch

Product ID: 206202711

Details

Brand
HARMNEE
Color
Silver
Item Weight
240 g
Material
Metal
Product Dimensions
3.1"L x 4.5"W

⚡DC 10-55V wide voltage range

📊LED display for precise speed readout

🔋Rated 40A, max 60A current capacity

£27.17

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UK.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

⚙️ Take command of your motor’s speed and direction like a pro — precision control, zero compromises!

SEAMLESS SPEED MASTERY - Stepless potentiometer lets you dial motor speed from 0% to 100% with surgical precision.
INSTANT VISUAL FEEDBACK - Bright LED display keeps you informed of exact motor speed, eliminating guesswork and boosting confidence.
BUILT TO LAST STAY COOL - Robust aluminum enclosure with strategic ventilation ensures superior heat dissipation and durability.
POWERFUL VERSATILE VOLTAGE RANGE - Supports DC 10-55V, perfect for a wide array of brush motor projects and upgrades.
DIRECTIONAL CONTROL AT YOUR FINGERTIPS - Forward-Brake-Reverse switch offers effortless rotation direction changes for ultimate control.

The HARMNEE PWM DC Motor Speed Controller is a high-performance device designed for DC brush motors, operating within a broad 10-55V range and handling currents up to 60A max. Featuring a stepless potentiometer for smooth speed adjustments and an intuitive LED display for real-time speed monitoring, it also includes a forward-brake-reverse switch for versatile directional control. Its durable aluminum casing with ventilation ensures excellent heat dissipation, making it ideal for professional-grade motor speed regulation and light dimming applications.

Specifications

Asin	B089273KVZ
Best Sellers Rank	#49,037 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #8 in Electrical Motor Controls
Brand Name	HARMNEE
Color	Silver
Customer Reviews	4.1 4.1 out of 5 stars (468) 4.1 out of 5 stars
Display Type	LED
Item Dimensions L X W X H	3.1"L x 4.5"W x 1.4"H
Item Weight	240 g
Manufacturer	WellHome Innovation
Material Type	Metal
Model	Standard 10-55V/60A Max
Number Of Items	1
Part Number	Standard 10-55V/60A Max
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.