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.

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PWM DC Motor Speed Controller, DC 10-55V/60A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch

PWM DC Motor Speed Controller, DC 10-55V/60A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch

Product ID: 378173956

Details

Brand
HARMNEE
Colour
With Display
Item weight
240 Grams
Material
Metal
Product dimensions
7.9L x 11.4W x

⚡DC 10-55V wide voltage range

💡LED display for precise speed readout

🔥60A max current for high power

277 zł

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Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Command your motor’s speed like a pro — precision, power, and control in one sleek package!

REAL TIME FEEDBACK - LED display provides instant, clear speed percentage, keeping you in full control at all times.
COOL DURABLE DESIGN - Robust aluminum enclosure with ventilation holes ensures superior heat dissipation and longevity.
POWERHOUSE PERFORMANCE - Handles up to 60A max current and 40A continuous, perfect for demanding DC brush motors.
SEAMLESS SPEED MASTERY - Stepless potentiometer lets you dial motor speed from 0 to 100% with pinpoint accuracy.
INTUITIVE DIRECTION CONTROL - Forward-Brake-Reverse switch offers effortless motor direction changes without hassle.

This PWM DC Motor Speed Controller supports a broad DC voltage range of 10-55V and delivers up to 60A max current, making it ideal for high-demand DC brush motors. Featuring a stepless potentiometer for smooth speed adjustment from 0-100%, an LED display for real-time speed feedback, and a forward-brake-reverse switch for easy direction control, it’s housed in a durable aluminum case designed for optimal heat dissipation. Perfect for professionals seeking precise motor control with reliable performance.

Specifications

ASIN	B089273KVZ
ASIN	B089273KVZ
Best Sellers Rank	#214,768 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #293 in Electrical Motor Controls
Brand Name	HARMNEE
Color	With Display
Customer Reviews	4.2 4.2 out of 5 stars (454)
Customer reviews	4.2 4.2 out of 5 stars (454)
Date First Available	26 May 2020
Display Type	LED
Item Dimensions L x W x H	7.9L x 11.4W x 3.6H centimeters
Item Weight	240 Grams
Item model number	Standard 10-55V/60A Max
Manufacturer	HARMNEE
Manufacturer	HARMNEE
Material Type	Metal
Model	Standard 10-55V/60A Max
Part Number	Standard 10-55V/60A Max
Product Dimensions	7.8 x 11 x 3.61 cm; 240 g

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277 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered 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 Poland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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