Is the product here in the us? and not in china. couldn't cancel an order from china. it's going to take 45 days for the product

For any product sold on Amazon: The information you need is available right from the product page: Look above the "add to cart" button, and read the estimated arrival date, and most especially, whether the item is "Fulfilled by Amazon", or "sold by and shipped from Amazon". ALSO, underneath the bulletted description next to a product's photo, look for a link that says some number is "New from", or "News and Used from"; if you click it, a side menu slides out that shows sellers, prices, whether shipping is free or not, and the estimated delivery date.

Is this the best thing to dim some led lights ? Is it bad to use? I know it should work but...?

I used 3 of these to control each color of a strip of SMD 5050 LEDs. They work great. No buzzing, smooth linear control.

what is the PWM frequency?

Frequency can be changed with C2. 0.12nF 66.7KHz 1nF 11.4KHz 10nF 1.2KHz 100nF 118Hz 1000nF 1.2Hz

Does the knob include an on/off function or does it just adjust the speed? Need to know if I need to purchase an additional power switch.

The knob has an on/off function.

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

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

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RioRand Ver.2.0 Premium PWM DC Motor Speed Controller 1803BK | 1.8V-12V Max 15V 2A with Self-Recovery Fuse & On/Off Switch for DIY Electronics Low Voltage LED Dimming

Product ID: 9338040

Details

Brand
RioRand
Color
Green
Material
Iron Plastic
Product Dimensions
1.26"L x x
Voltage
1.8 volts

⚡1.8V-12V adjustable input

🔄0%-100% PWM duty cycle

🛡️2A self-recovery fuse protection

R302

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Control your power, command your projects—because precision never goes out of style.

ROBUST RELIABLE - Upgraded 1803BK chip and premium components ensure steady output and extended lifespan.
SMART SAFETY FIRST - Built-in 2A self-recovery fuse and power indicator safeguard your circuits from overloads.
COMPACT CONVENIENT - Ultra-mini 32×32×14mm design with integrated on/off switch fits any DIY project effortlessly.
PRECISION SPEED CONTROL - Fine-tune motor speed or LED brightness with seamless 0%-100% PWM adjustment.
VERSATILE DIY ESSENTIAL - Perfect for low voltage DC motors and LED dimming—ideal for hobbyists and pros alike.

The RioRand Ver.2.0 Premium PWM DC Motor Speed Controller offers adjustable 1.8V-12V input with a max 15V tolerance and 0%-100% PWM duty cycle for precise motor speed and LED brightness control. Featuring a genuine 1803BK chip, a compact 32×32×14mm form factor, an integrated on/off switch, and a 2A self-recovery fuse with power indicator, it ensures reliable performance and circuit protection for low voltage DIY electronics projects.

Specifications

ASIN	B00N30UK2M
Best Sellers Rank	#165,293 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #70 in Electrical Motor Controls
Brand Name	RioRand
Color	Green
Customer Reviews	4.3 4.3 out of 5 stars (597)
Display Type	LED
Global Trade Identification Number	00701851068507
Included Components	1x Motor Speed Controller
Item Dimensions L x W x H	1.26"L x 1.26"W x 0.55"H
Item Type Name	Low Voltage Dc 1.8v 3v 5v 6v 12v 2a Motor Speed Controller Pwm
Item Weight	14 g
Manufacturer	RioRand
Material Type	Iron, Plastic
Model	RR-PWM-15V
Number of Items	2
Part Number	RR-PWM-15V
UPC	701851068507
Unit Count	1 Count
Voltage	1.8 volts
Warranty Description	3 MONTHS

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