adding auxiliary backup light
Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=129478
Printed Date: July 07, 2025 at 11:32 AM
Topic: adding auxiliary backup light
Posted By: fofive
Subject: adding auxiliary backup light
Date Posted: December 01, 2011 at 3:26 PM
Hello. Can you please send me a diagram of what you've described here. My additional backup light will be operated when my 2005 Dodge Grand Caravan is in reverse or whenever I choose via a separate switch. I don't want the 3rd backup light, (a 12 volt 35 watt utility light) to drain my battery if I forget to turn it off, so having it act like my headlights do when I forget to turn them off would be necessary. I know next to nothing about electronics but can follow a clear step by step how-to diagram and do the necessary work.Can you help?
Thanks
Replies:
Posted By: birdman41
Date Posted: December 23, 2011 at 3:24 AM
So you are planning to use a 35watt back up light? It can be done tapping into your reverse light wire..however you may need to check how many amps the fuse on that circuit is first and if it can handle 35 more watts without blowing..
Posted By: oldspark
Date Posted: December 23, 2011 at 3:17 PM
And if the switch handles it...
But a relay will look after that.
Posted By: fofive
Date Posted: December 23, 2011 at 8:01 PM
The backup lights I believe are 3157 bulbs which draw 2.1 amps each. The fuse is 10amps. As I would like to have a switch to control this light when not in reverse wouldn't a separate circuit work best? if yes I need to know how to wire what to what. Thanks
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