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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LED Light Strip Dimmer

Product ID: 87748577

Details

Brand
SUPERNIGHT
Connector Type
Clamp
Contact Type
Normally
Current Rating
30 A
Item dimensions L x W x H
3.54 x 2.56 x
Material
Metal

⚡Supports 12V-24V, max 30A load

🔆0%-100% smooth PWM dimming

🛡️Aluminum housing for heat & corrosion resistance

€ 32.41

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💡 Turn your lighting game up a notch—because your space deserves the perfect glow.

PLUG PLAY INSTALLATION - Screw-in terminals and pre-drilled mounts make setup a breeze—upgrade your lighting in minutes, no electrician needed.
ROBUST POWER COMPATIBILITY - Handles up to 30A at 12-24V, ideal for a wide range of single-color LED strips without compromise.
SEAMLESS BRIGHTNESS CONTROL - Effortlessly dial your perfect ambiance from pitch dark to full glow with a tactile rotary knob.
LED PROTECTION WITH PWM TECH - Pulse-width modulation prevents surge currents, extending your LED strip’s lifespan and reliability.
DURABLE COOL UNDER PRESSURE - Premium aluminum casing ensures long-lasting performance by dissipating heat and resisting corrosion.

The SUPERNIGHT LED Light Strip Dimmer is a high-performance PWM controller designed for 12V-24V LED strips, supporting up to 30A. Featuring a smooth rotary knob for precise 0%-100% dimming, it boasts a sturdy aluminum housing for superior heat dissipation and corrosion resistance. Its PWM technology protects LEDs from surge currents, ensuring longevity. Easy to install with screw terminals and mounting holes, this dimmer is a cost-effective upgrade for customizable, flicker-free lighting control.

Specifications

ASIN	B07HN1BJWK
Actuator Type	Rotary
Best Sellers Rank	#17,260 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Dimmer Switches
Brand Name	SUPERNIGHT
Circuit Type	1-way
Color	Black
Compatible Devices	LED light strips
Connectivity Protocol	Wi-Fi
Connector Type	Clamp
Contact Material	Aluminum
Contact Type	Normally Closed
Control Method	Touch
Controller Type	Mechanical knob
Current Rating	30 A
Customer Reviews	4.2 4.2 out of 5 stars (683)
International Protection Rating	IP44
Item Dimensions	3.54 x 2.56 x 1.57 inches
Item Weight	0.27 g
Manufacturer	SUPERNIGHT
Material Type	Metal
Model	7539579860
Mounting Type	Surface Mount
Number of Items	1
Number of Positions	1
Operating Voltage	12 volts
Operation Mode	ON-NONE-OFF
Part Number	BKC1265-GM
Specification Met	Ip44
Switch Type	Kill Switch
Terminal	Through Hole
Unit Count	1 Count
Upper Temperature Rating	80 °C
Wattage	720 watts

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