We All Love Pretty LEDs...dont we?
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=11024
Printed Date: May 28, 2024 at 9:08 PM
Topic: We All Love Pretty LEDs...dont we?
Posted By: IXJ159
Subject: We All Love Pretty LEDs...dont we?
Date Posted: March 17, 2003 at 12:29 PM
I wanted to add a pretty blue led for my alarm rather then the crappy red one... however... the nice bright blue one requites more power then the output from my alarm lets out to light it up..... is their some way i can add the blue one w/o using a relay, i dont want to use a relay, just b/c... that damn thing will be clicking all the time w/ the blinking, unless that red led is a blinking one in the first place... anyhow... anyhelp would be appreciated... thanks, eric.
Replies:
Posted By: MielGibson
Date Posted: March 17, 2003 at 6:08 PM
Try using a transistor buffer.
Posted By: draasch
Date Posted: March 17, 2003 at 10:10 PM
what brand of alarm do you have?? ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: IXJ159
Date Posted: March 17, 2003 at 10:25 PM
Posted By: jamiemac
Date Posted: March 18, 2003 at 2:39 PM
not for sure here.. but think the DEI Led output is 2volts and not 12 volts.. could be wrong but think it is... can anybody confirm this???? might try using the grounded while armed out put .. would work if the led is a blinking one... hope this helps some...
Posted By: IXJ159
Date Posted: March 18, 2003 at 2:45 PM
Makes since, I might give it a try, the blue led requites 3.5 volts to opperate.... i might just wire up a relay to get it to work, but w/ a relay clicking like that all the time, what kind of life spand would the relay have? surely that would wear away the contacts and such quickly......oh well ill figure something out..... thanks....Eric
Posted By: MielGibson
Date Posted: March 18, 2003 at 5:54 PM
Well, this might work...Try using a Red blinking LED in series with the blue LED.You're gonna need a resistor to limit the current through the LEDs, start with a large value, let's say 820 ohms 1/2 watt resistor. Try several values.
12V-->resistor-->red blinking LED-->Blue LED-->grounded output from alarm.
Posted By: Dan M C
Date Posted: March 18, 2003 at 8:11 PM
Good question,i have a Clifford Arrow II with the red led from the factory and i was gonna change to a blue one but i was told that my Clifford put's out only 2 V rather than 12V.So if your's will work please post your rezults.
Thank you 
Posted By: mackadilly
Date Posted: April 18, 2003 at 2:40 PM
Can you described in detail, the axact procedure for wiring LEDs in series?
MielGibson wrote:
Well, this might work...
Try using a Red blinking LED in series with the blue LED.
You're gonna need a resistor to limit the current through the LEDs, start with a large value, let's say 820 ohms 1/2 watt resistor. Try several values.
12V-->resistor-->red blinking LED-->Blue LED-->grounded output from alarm.
Posted By: x6369x
Date Posted: April 18, 2003 at 7:29 PM
DEI now offers blue LEDs for their alarms that are a direct plug in. Check eBay, they normally go for about $10.00 shipped.
-------------
Friends Don't Let Friends Bump Stock.
Posted By: Stunnin
Date Posted: April 20, 2003 at 7:58 PM
you can get different volt led's I also changed to a blue led some time ago and had the same problem so i used a smaller voltage led from radio shack. i also used a resistor so the alarm wouldn't "burn it"
-------------
Posted By: ShaunD912
Date Posted: June 06, 2003 at 9:39 AM
I had no trouble at all replacing the red led with a blue flashing led from varad. My alarm is a Python 1500. At first I used the ground when armed output but I didn't like it because it didn't show system status anymore, instead it just blinked when the alarm was armed. So I cut off the red led and the flasher that is wired to the blue led. I then just wired the blue led directly to the wires that were powering the red led. It's been working for about 6 months perfectly with no problems at all. Just be careful, as it may cause trouble with other alarms.
Posted By: xetmes
Date Posted: June 06, 2003 at 1:19 PM
you gotta remeber that LEDs are not voltage driven devices (like incandesent lightbulbs), and therefore need a current limiting resistor in line, Unless the manufacturer already put one in like those 12V LEDs.
|