How does a flasher work

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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=3292
Printed Date: July 19, 2025 at 3:41 PM

Topic: How does a flasher work

Posted By: Mike in VA
Subject: How does a flasher work
Date Posted: September 03, 2002 at 5:24 AM

I have an alternating flasher from Tridon. Marked as below.

(L) | (X) |

(L)|

Replies:

Posted By: mobiletoys2002
Date Posted: September 03, 2002 at 6:46 PM

Go to howstuffworks.com search flasher you will get an awesome explanation of a flasher or what it really is a thermal switch go to the site and you'll see why they call it that. posted_image

here is a link direct to that page https://https://www.howstuffworks.com/turn-signal.htm see ya posted_image

Posted By: Chris Luongo
Date Posted: September 04, 2002 at 10:29 PM

Do you mean, how does it work, or how should you wire it up?

I'm pretty sure that "L" means "load".... an electrical load that is. Therefore, attach the positive lead of each light, to each of those L terminals. And then you have only one terminal left over....attach that to the positive output from whatever switch you're using.

Again, this is just my opinion. I believe it will work, but don't blame me if something breaks.

Posted By: SnomanF150
Date Posted: September 24, 2002 at 8:53 PM

I tell my guys that a flasher is just like a auto-reset curcuit breaker..

when power goes thru it to a light or horn, it will draw current which in turn will heat it up and 'blow' it like a fuse, as it cools down, the contact resets itself allowing current to flow again.... and starting all over.. best way I can think of to explain it..

George

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