multiple flashing alarm led’s via relay?
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=129428
Printed Date: July 15, 2025 at 1:29 AM
Topic: multiple flashing alarm led’s via relay?
Posted By: LooneyG
Subject: multiple flashing alarm led’s via relay?
Date Posted: November 28, 2011 at 2:59 PM
I did do some searching around the Site and was unable to find this Info but is there a way to add multiple 12V LED's to a Car Alarm's LED port via a Relay and have them all Blinking ? If so could somebody maybe post a Diagram and if there is any other way to make this happen please post it too.
Thanks
Replies:
Posted By: KPierson
Date Posted: November 28, 2011 at 5:19 PM
You would need a transistor as a relay would draw too much current. You should be able to find schematics on the internet for this.
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Kevin Pierson
Posted By: i am an idiot
Date Posted: November 28, 2011 at 7:20 PM
Radio Shack sells a 12volt flashing LED. You should be able to connect them to a 12 volt constant source, and ground them to your alarm's Ground when armed wire. It is the same wire to which the starter kill relay is connected.
Posted By: birdman41
Date Posted: December 08, 2011 at 3:31 AM
If memory serves me correct you can connect up to 2 leds to one port..just wiring them in series with one another.
Posted By: howie ll
Date Posted: December 08, 2011 at 5:19 AM
Actually, it's up to 3 blue and 5 red when wired in series.
This ONLY relates to DEI group product with 2.5 volt LED.
From 12V+ they will need a resistor of more than 800 ohms in series.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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