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 DC 12V-24V 30A PWM LED Light Strip Dimmer for Dimmer Controller Dimmer Knob Brightness On/Off Switch with Aluminum Housing for Single Channel 5050 3538 Single Color Tape

SUPERNIGHT DC 12V-24V 30A PWM LED Light Strip Dimmer for Dimmer Controller Dimmer Knob Brightness On/Off Switch with Aluminum Housing for Single Channel 5050 3538 Single Color Tape

Product ID: 767702850

Details

Brand
SUPERNIGHT
Color
Aluminum
Item Weight
0.01 Ounces
Material
Aluminum
Unit Count
1.0 Count

⚡12V-24V, max 30A power

🔆0-100% smooth dimming

🛡️Aluminum housing for heat & corrosion

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Description

💡 Illuminate your space, your way — never settle for less than perfect lighting!

LED SAFE PWM DIMMING - Protect your LEDs from current spikes with advanced PWM digital dimming technology.
ROBUST ALUMINUM BUILD - Engineered for durability and superior heat dissipation in any environment.
HASSLE FREE INSTALLATION - Pre-drilled mounting holes and screw terminals make setup quick and secure.
WIDE VOLTAGE COMPATIBILITY - Seamlessly supports 12V to 24V LED strips up to 30A for versatile setups.
PRECISION BRIGHTNESS CONTROL - Effortlessly dial your perfect ambiance with a smooth swivel knob.

The SUPERNIGHT DC 12V-24V 30A PWM LED Light Strip Dimmer offers full-range dimming from 0 to 100% with a user-friendly swivel knob. Built with a high-quality aluminum housing, it ensures excellent heat dissipation and corrosion resistance for long-lasting performance. Compatible with single-channel 5050 and 3538 single-color LED strips, it supports up to 30A and features PWM digital dimming to protect your LEDs from rapid current fluctuations. Easy to install with pre-drilled mounting holes and screw terminals, this dimmer is the perfect upgrade for professional and home lighting setups.

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ASIN	B07HN1BJWK
Brand Name	SUPERNIGHT
Color	Aluminum Dimmer
Customer Reviews	4.3 4.3 out of 5 stars (605)
Item Weight	0.01 Ounces
Manufacturer	SUPERNIGHT
Material Type	Aluminum
Model	7539579860
Part Number	BKC1265-GM
Unit Count	1.0 Count

SUPERNIGHT DC 12V-24V 30A PWM LED Light Strip Dimmer for Dimmer Controller Dimmer Knob Brightness On/Off Switch with Aluminum Housing for Single Channel 5050 3538 Single Color Tape

Details

Details

Description

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Common Questions