Rock Lights To Dome Lights Using Relay, Relay Buzzes While Dimming

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=147354
Printed Date: May 02, 2025 at 11:25 AM

Topic: Rock Lights To Dome Lights Using Relay, Relay Buzzes While Dimming

Posted By: bilrob
Subject: Rock Lights To Dome Lights Using Relay, Relay Buzzes While Dimming
Date Posted: May 14, 2022 at 2:34 PM

Hi I have my rock lights connected to dome lights with a 4 pin relay. The problem is the relay chatters/buzzes when the lights are dimming. Any solution to this or any other wiring solutions? Thanks. 12 volt battery to pin 30, ground to 85 ,car dome light to 86, and rock lights to pin 87. I have attached a drawing/diagram of my connections.

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Abilrob

Replies:

Posted By: geepherder
Date Posted: May 14, 2022 at 7:52 PM

Why not try a solid state relay?

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My ex once told me I have a perfect face for radio.

Posted By: bilrob
Date Posted: May 14, 2022 at 8:32 PM

Okay thank you. how does a ssr work and how would I connect the wires like my diagram? Does it have different numbers for terminals? Do I need any diodes in my connections?

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Abilrob

Posted By: geepherder
Date Posted: May 14, 2022 at 9:04 PM

Typically, the input terminals are similar to the coil on a mechanical relay but are terminals 3 and 4. Just make sure it's a DC-DC SSR that meets your voltage and current requirements.

Check Amazon and eBay. You shouldn't need diodes and this may be the simplest solution to do what you want. A transistor could possibly work as long as it meets the power requirements, but you'd need to do some math and find proper resistors as well.

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My ex once told me I have a perfect face for radio.

Posted By: bilrob
Date Posted: May 15, 2022 at 6:52 AM

Hi I bought two ssr's from Amazon. Ill let you know how it goes after install this week.

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Abilrob