can i wire 3 led’s on a viper 5002

I have 3 led's in my car from a previous Alpine alarm.  Can I wire the 3 with the new Viper 5002?

I think it could run 3.  How much do they draw?  Some like the older DEI red LED's didnt draw as much as the new blue ones.  Wire them in series though.

Funnily enough I added an old red LED to the front blue wired in parallel on a Clifford last week and neither worked! (Current draw?) I had to use 2 blues, so ref the existing Alpine LEDs make sure there isn't a compatibility issue.

With resistors? Else the lower voltage one could turn off the other...

Else as you pondered - limited current.

Better chance of lighting by adding it in series (without resistor) - dropping the series voltage/current for LEDs has relatively little dimming effect (ie, assuming it stays lit, a huge increase in resistance or drop in current has disproportionately less effect on LED brightness... IMO).

I have been playing with multi LEDs for my viper 550ESP for a couple weeks now.

Using DEI bright red LEDs and wiring them in series, 3 are each virtuallly as bright as a single one. When i seriesed 4 they seemed to be quite noticably dimmer.

I have decided to probably use 3 when i do the install on my Roadmistress wagon.

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yuk
quiet rural missouri, near KC.
If your system moves you physically and not emotionally, you have wasted your money.

Last post is correct, according to Directechs, 3 blue or 5 red in series.
Or just buy however many 12V flashing relays, Radio Shack etc and wire them from a constant source, grounded to your armed out, although I would suggest a latching relay or transistor to boost the ground side.

there are basically 3 reasons i am going with them in series.

1It looks like there is a single unit running them as opposed to many different flashes happening looking like they might just be a lot of LEDs wired up randomly.

2 if the alarm goes off they will all report the incident so confusion, etc. is kept to a minimum.

3 I imagine when it all said and done. seriesing them probably will yeild less battery drain.

Regardless, having more than one is always gonna be a better idea than not.

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yuk
quiet rural missouri, near KC.
If your system moves you physically and not emotionally, you have wasted your money.

itsyuk wrote:

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I imagine when it all said and done. seriesing them probably will yeild less battery drain.
Regardless, having more than one is always gonna be a better idea than not.

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Yes - in series means 1/3rd the current drain - say 20mA instead of 60mA.

But as to having more than one, if one fail, they all will (most likely). So 3 is fine for their extra attraction, but 3 in series is less reliable than a single LED or 3 in parallel. Though LEDs are supposed to be VERY reliable aren't they?

Good point on the failure possibility. Although I have personally never seen a correctly powered (alarm) one fail, that dont mean it aint gonna.

I kinda wonder about a series parallel scheme of 4 leds.

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yuk
quiet rural missouri, near KC.
If your system moves you physically and not emotionally, you have wasted your money.

https://www.the12volt.com/installbay/forum_posts.asp?tid=121096

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