Need Advice: What Relay?

[xtopherm]

I am working on wiring some halogen driving lights and I am looking for recommendations for the right relay to use.

They are vintage Hella 170s, which are classic large diameter halogen driving lights. (I know they are not as power efficient as the newer LED lights, but they have a ton of sentimental value because they are from the first car I worked on with my Dad when I was young, and I have the tow package with the upgraded alternator, so should have plenty of power for occasional trail use.)

Anyone have any advice in terms of what is the right relay to use for a pair of 100W halogens? (Wiring advice or diagram would be really welcome too!)

Thanks!

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[Midwest22]

I am working on wiring some halogen driving lights and I am looking for recommendations for the right relay to use.

They are vintage Hella 170s, which are classic large diameter halogen driving lights. (I know they are not as power efficient as the newer LED lights, but they have a ton of sentimental value because they are from the first car I worked on with my Dad when I was young, and I have the tow package with the upgraded alternator, so should have plenty of power for occasional trail use.)

Anyone have any advice in terms of what is the right relay to use for a pair of 100W halogens? (Wiring advice or diagram would be really welcome too!)

Thanks!

If each light is 100 watts then you will have 8.33amps flowing through the wires (100w / 12v = 8.33amps). This means your relay needs to be capable of this. Go to Amazon and search for:

12V 30 40A SPDT Bosch Style Automotive Relays & 5 Wire Socket

 

[xtopherm]

If each light is 100 watts then you will have 8.33amps flowing through the wires (100w / 12v = 8.33amps). This means your relay needs to be capable of this. Go to Amazon and search for:

12V 30 40A SPDT Bosch Style Automotive Relays & 5 Wire Socket

Thanks!

 

[Hgrace]

I'm thinking of something similar but I want to flip them under the bar

 

[jlewissystem]

The above calculations are correct. Assuming those are 100W each, then you would need (at least) a 16A run (wires, relay, fuse). Something like this would work for it. Just make sure you have enough AMP and you can choose whatever switch you want. An example: https://www.amazon.com/MICTUNING-Wi...jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

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