Could someone tell me the frequency that this dimmer's pwm module operates at? my eyes are susceptible to led flicker. 60hz would be way too slow.

I just measured mine with an oscilloscope. It switches at 1200 Hz, which is lower frequency than I would’ve expected for a PWM switch. The minimum on period is about 5%, and the maximum is about 92%. Mine has a voltage drop (PWM +Mosfet RDSon) of approximately 1 V with a 14 amp load. it is probably in excess of 1.5 V at it’s rated load (30A). I use a Meanwell 15 volt 200 watt power supply set to 13.2 volts to get full brightness from my 12 V / 14 amp LED string. If you go this route, the voltage adjustment is a small potentiometer next to the terminal block on the power supply.

Will this work on a 18 w 12 v led light?

Yes and these dimmers work very well. I have 2 of them and they control 50 ft. of lights each. They are very "smooth" in dimming. Not all jumpy like others..

I wire from the battery to the "in" side and to the lights (strip led) on the "outside" of the controller. Works once then it won't dim?

I would send it back. Must be defective. Mine work fine

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SUPERNIGHT LED Light Strip Dimmer, DC12V-24V 30A PWM Dimming Controller for Dimmer Knob Adjust Brightness ON/Off Switch with Aluminum Housing

Product ID: 421305167

Details

Brand
SUPERNIGHT
Colour
Black
Item weight
0.01 Ounces
Material
Metal
Product dimensions
8.6L x 8.6W x

⚡0%-100% Dimming

🔌DC 12V-24V Compatibility

🛠️30A Max Load

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155748Fr

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Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

Illuminate Your Space, Your Way! 💡

BUILT TO LAST - Crafted from high-quality aluminum, this dimmer is resistant to corrosion and heat, ensuring durability in any environment.
PROTECT YOUR INVESTMENT - Advanced PWM technology prevents rush current, safeguarding your LED lights for longer life.
VERSATILE COMPATIBILITY - Designed for single-channel LED strips, this dimmer works flawlessly with 5050, 3528, and 5630 models.
HASSLE FREE INSTALLATION - With pre-drilled holes and easy screw-in terminals, setting up your dimmer is a breeze—no electrician needed!
SEAMLESS BRIGHTNESS CONTROL - Effortlessly adjust your lighting from a cozy glow to vibrant brightness with a simple twist of the knob.

The SUPERNIGHT LED Light Strip Dimmer is a robust PWM dimming controller designed for DC 12V-24V LED applications. With a maximum load of 30A, it allows for seamless brightness adjustments from 0% to 100% via a user-friendly knob. Its durable aluminum housing ensures longevity, while advanced technology protects your LED strips from damage. Installation is straightforward, making it an ideal choice for both DIY enthusiasts and professionals.

Specifications

ASIN	B07HN1BJWK
Best Sellers Rank	#97,889 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #206 in Dimmer Switches
Brand Name	SUPERNIGHT
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (605)
Item Dimensions L x W x H	8.6L x 8.6W x 3.5H centimeters
Item Weight	0.01 Ounces
Manufacturer	SUPERNIGHT
Material Type	Metal
Model	7539579860
Part Number	BKC1265-GM
Smart Home Compatibility	Not Smart Home Compatible
Unit Count	1.0 Count

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