I cannot get this to work with a 3.5~9v dc pump (which can be controlled via an inline usb unit similar to this). what resistor is tied to the pot?

It is a PWM. It should work with a DC motor in most instances.

What size hole for the shaft?

Need more information about the shaft.

I need to adjust output voltage 0-5vdc (to motor) using 15vdc in (power), will this do that ?

This cannot be done. This is just a speed-regulating motor with a maximum current of 2A. If the continuous current exceeds 0.5A, it won't work. It is not recommended to connect with a voltage exceeding 12v, which may cause damage to the controller

Can this work as a dc light dimmer?

It should work ok as a low voltage dimmer. Probably OK for LEDs

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

10pcs 1803BK Low Voltage DC Motor Adjustable w/Speed Control Knob

10pcs 1803BK Low Voltage DC Motor Adjustable w/Speed Control Knob

Product ID: 114286017

Details

Brand
Onyehn
Color
Green
Contact Type
Spdt
Current Rating
2 A
Voltage
15

⚡2A max current with self-recovery fuse

🔋Operates on 1.8-15V DC voltage

🎛️0-100% PWM speed control knob

E£ 2870

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

Description

🎛️ Take control of your motors — speed, safety, and style in one sleek package!

BUILT IN SAFETY FUSE - 2A self-recovery fuse protects your setup from overloads, ensuring worry-free operation every time.
COMPACT LIGHTWEIGHT - At just 78g and 1.26" square, it fits seamlessly into any project without bulk or hassle.
PRECISION SPEED CONTROL - Smoothly adjust motor speed from 0% to 100% with an intuitive knob for ultimate customization.
PLUG AND PLAY SIMPLICITY - Manual potentiometer control with clear LED indicator makes setup and monitoring effortless.
WIDE VOLTAGE COMPATIBILITY - Supports 1.8V to 15V DC input, perfect for diverse low-voltage motor applications.

The Onyehn 1803BK is a compact, low-voltage DC motor speed controller featuring a 2A self-recovery fuse and a manual potentiometer knob for precise PWM speed adjustment from 0% to 100%. Designed for 1.8V to 15V DC motors, it offers built-in overload protection and an LED power indicator, making it ideal for safe, customizable motor control in various industrial and DIY projects.

Specifications

ASIN	B07NPJ5MQR
Best Sellers Rank	#263,888 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #167 in Electrical Motor Controls
Brand Name	Onyehn
Circuit Type	series
Color	Green
Connector Type Used on Cable	None Required
Contact Type	Spdt
Control Type	Manual
Current Rating	2 A
Customer Reviews	4.4 4.4 out of 5 stars (194)
Item Dimensions L x W x H	1.26"L x 1.26"W x 0.59"H
Item Weight	78 g
Manufacturer	Onyehn
Material Type	Metal, Plastic
Model	1803BK
Operating Voltage	15 volts_of_direct_current
Operation Mode	Automatically,Off
Part Number	1803BK
Switch Type	Potentiometer
Unit Count	10 Count
Voltage	15 volts_of_direct_current
Wattage	30 watts

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

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 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.

E£ 2870

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews