RE: [DML] Re: Headlight switch savers
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RE: [DML] Re: Headlight switch savers



By the way, driving an incandescent light with a relay or switch is not as simple as it sounds. A cold filament in a light bulb (i.e. when the bulb is off)  will draw around 10 - 12 times the amount of current it draws when hot, i.e. "on". 

No joke. The surge current on an incandescent light is more severe than with an inductive load!

Joe Kuchan



To: dmcnews@xxxxxxxxxxxxxxx
From: hmcelraft@xxxxxxx
Date: Thu, 4 Jun 2009 14:11:32 +0000
Subject: [DML] Re: Headlight switch savers




















    
            
            


      
      I did this very thing some 20 years ago to my 3354 so I could get a marker light flash with my alarm - I realized when I set it up that I was removing a lot of amperage from the light switch. Same relays (OEM's in the relay compartment), original light switch, so far, and 60,000 miles later.



Harold McElraft - 3354



--- In dmcnews@xxxxxxxxxxxxxxx, Marc Levy <malevy_nj@...> wrote:

>

> 

> With all the talk of relays wearing out instead of the switch itself due to the amount of current draw, I am surprised none of the vendors sell a dual relay kit.

> 

> The left side and the right side of the car are electrically isolated by fuse #2 and #8.  It would be incredibly easy to install 2 relays in line with those fuses such that a separate relay controls each side of the car.  This would also relocate the relays to the "relay compartment" instead of hidden behind the center console.

>





 

      

    
    
	
	
	
	


	


	
	
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