1992 e36 318is-What diodes? "running lights" - Page 2

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    #11
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    Right ok, cheers. one question how many milliamps does a 501 bulb need/use? Been trying to find out with no joy, I can only find what an LED uses..
     
     

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    Quote Originally Posted by Disco Stu View Post
    Right ok, cheers. one question how many milliamps does a 501 bulb need/use? Been trying to find out with no joy, I can only find what an LED uses..

    What wattage is the bulb?

    Example 5 watt bulb on a 12V system

    5 / 12 = 0.415 Amps or 416 milliamps

    However what you need is nothing to do with that. you need to find the equivalent brightness to your bulb in, I think, mcd as lumens isn't straight forward.

    Normal bulbs produce about 90% heat and 10% light. LEDs produce something like 90% light so use a lot lexxx current to produce the same light output as a conventional bulb.



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    #13
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    ok i have 501 bulbs in my idicators that come on when my side lights are on. When i have the low beam on it makes the headlights look wider which i think is cool. All i did was wire those extra 501's to the side light circuit.

    If you want them to come on independantly and run off of your fog switch there are a number of ways to do this. the easiest way would be to use an led with the resistor in line already, you can buy them off of ebay, then just wire that straight to the fog circuit. Or just stick the 12v 501s on the fog circuit as is.

    or even better wire in a whole new circuit.
     
     

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    Disco Stu (23-01-2012)

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    #14
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    Quote Originally Posted by Genesius View Post
    ok i have 501 bulbs in my idicators that come on when my side lights are on. When i have the low beam on it makes the headlights look wider which i think is cool. All i did was wire those extra 501's to the side light circuit.

    If you want them to come on independantly and run off of your fog switch there are a number of ways to do this. the easiest way would be to use an led with the resistor in line already, you can buy them off of ebay, then just wire that straight to the fog circuit. Or just stick the 12v 501s on the fog circuit as is.

    or even better wire in a whole new circuit.
    I'm just going to wire them to the sidelight/halos and run the wires into the car with a switch somewhere (possibly using the old fog switch), just waiting for the bulb holders to come in the post now. Cheers!
     
     

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