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dimming headlights


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gotohllcarolina 
Member - Posts: 5
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Joined: July 17, 2005
Location: United States
Posted: July 17, 2005 at 12:03 AM / IP Logged  
i have a set of hella driving lights on my car.
i want them to be on with the driving lights but they are too bright, they are 55W bulbs, i would like to know what resistor i should use to reduce the power to a much lower level
id like them to just glow dimmly
Mad Scientists 
Silver - Posts: 380
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Joined: February 07, 2004
Location: United States
Posted: July 17, 2005 at 1:18 PM / IP Logged  

You could wire them in series.. or use pulse width modulation to dim them.. resistors to do this would be fairly large.. probably in the range of 30w power rating.

Jim

nowlater123 
Copper - Posts: 61
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Joined: June 24, 2005
Location: United States
Posted: July 17, 2005 at 2:35 PM / IP Logged  
Get a potientiometer that is in the range of wattage, or just go the "Home Depot" and get a wall dimmer switch.
Kenwood all the Way!
gotohllcarolina 
Member - Posts: 5
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Joined: July 17, 2005
Location: United States
Posted: July 17, 2005 at 4:28 PM / IP Logged  
wow... im not sure what pulse width mod or potentiometers are, i might actually do the home depot thing and find somewhere to hide it, that way i can adjust it to my liking
Vetnutjim 
Member - Posts: 4
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Joined: August 03, 2005
Location: United States
Posted: August 03, 2005 at 8:57 AM / IP Logged  

I 'could' be wrong but. . . .the home light dimmers operate on 110~120vac.

Internally they use a Triac to control the attached light.

I'm fairly certain you can't use one of these devices to control your 12vdc lights.

Good luck with your project.

ff-mike 
Copper - Posts: 199
Copper spacespace
Joined: November 15, 2004
Location: United States
Posted: August 03, 2005 at 1:15 PM / IP Logged  
If your driving lamps are too bright then you are using the wrong kind of lamp.
There are 2 kinds of auxilary lamps- fog and driving. Fog lamps are used to supplement the low beams and driving lamps are to supplement the high beams.
Mm3stb 
Copper - Posts: 53
Copper spacespace
Joined: July 31, 2005
Location: United Kingdom
Posted: August 06, 2005 at 8:27 AM / IP Logged  

is there any way you could drill a hole and install a wee side light bulb in a gromet and wire it to your existing sidelights or something simmilar?

ive been thinking of doing this for a while but never got round to it as yet.

Hope this helps

Richard


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