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| | | | Joined: Nov 2008 Posts: 153 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2008 Posts: 153 | I just installed cab lights on my 64, C30. As an electrical "dummy", I'm not sure if I should wire them through a relay, or just patch them into an existing wire under the dash that feeds the lights. There are five of them, and they are not LED, so I am not sure if the draw will require a relay or not. I want them to be on when both the parking lights, or the headlights are activated. Thanks guys! | | | | | Joined: Jun 2003 Posts: 565 'Bolter | | 'Bolter Joined: Jun 2003 Posts: 565 | I would use a relay and feed the control circuit from the park lights. Then a fused power supply to the relay for the lights. Then you dont have to worry about extra current draw through the light switch.
Do your park lights burn when the headlights are on?
If so, this should work. If not, I'm not sure, cause they would only light when the park lights were lit. You could add a 2nd relay controlled by the headlights if needed. Then they would light if either were on.
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
| | | | | Joined: Sep 2008 Posts: 293 'Bolter | | 'Bolter Joined: Sep 2008 Posts: 293 | The previous answer might be a bit complicated, if you end up needing 2 relays.
A simpler place to get the electricity is from the dashboard lights, thoses are on whether with parking lights or headlights: then you will need a relay, the dashboard lights circuit is usually pretty light gauge, a relay would be safer.
'57 Chevy Suburban; '70 Chevy Impala.
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | The parking lights? The headlights? The dashboard lights? Why not the tail light circuit? They are on with either park lights or headlights. And you probably don't need a relay but it wouldn't hurt anything if you use one.
Last edited by cletis; 11/21/2009 7:22 PM.
| | | | | Joined: Oct 2008 Posts: 321 'Bolter | | 'Bolter Joined: Oct 2008 Posts: 321 | Cletis is rignt, use the tail light circuit to acheive your goal. Matter of fact, that's how they are set up on my '71 and it works great that way. I don't have a relay, but those are never a bad idea.
1963 Chevy C20 Longbed Stepside
1978 Chevy K30 Custom Deluxe
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | I wire mine to the tail lights. You don't need a relay as they don't pull very much curent. I do run them through there own fuse. About 5 amp. That way if something would short out you would not lose your tail lights also.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Nov 2008 Posts: 153 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2008 Posts: 153 | Well I think taillights it is! Thanks guys, I can always count on expert advise here on the bolt! | | |
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