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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > General H3 Discussion

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  #1  
Old 05-25-2006, 04:25 AM
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Default Re: WHO IS THE GENIUS ON THIS BOARD???

i like it when we talk about tires
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Old 05-25-2006, 11:00 AM
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Default Re: WHO IS THE GENIUS ON THIS BOARD???

BIG shecmatic Output voltage will be 12-14 volts depending on generator output. Whether or not this voltage will blow the LEDs is dependent on the type of LEDs installed. However, most will require some type of step down resistor to cut the current.
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Old 05-25-2006, 12:23 PM
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Default Re: WHO IS THE GENIUS ON THIS BOARD???

The Luxeon reds are 3-4 watts. I hoping this is enough juice for the BCM to operate properly
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Old 05-25-2006, 08:59 PM
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Default Re: WHO IS THE GENIUS ON THIS BOARD???

Quote:
Originally Posted by wordstew
The Luxeon reds are 3-4 watts. I hoping this is enough juice for the BCM to operate properly

Are you considering the Luxeon III's? What power current level were you going to run them at? Do you have a heatsink? Are you going to use a current regulator or just a resistor?

To test if the flasher is current based, you can probably disconnect the connector from a turn-signal bulb, for example, and see if the flash rate changes (or disconnect both front and rear and connect a voltmeter to see if the voltage switches at the normal rate between B+ and gnd). The BCM supplies voltage to the turn signal bulbs. I'm guessing that BCM control the switching rate independent of bulb current.

I would place a capacitor across the LED's terminals to act as a voltage snubber and place a diode (1n4001) antiparallel to the LED to prevent any reverse voltage transients on the Luxeon.
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Old 05-25-2006, 03:34 PM
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Default Re: WHO IS THE GENIUS ON THIS BOARD???

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Originally Posted by NEOCON1
i like it when we talk about tires

How about them Racks?
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Old 05-25-2006, 09:02 PM
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Lightbulb Re: WHO IS THE GENIUS ON THIS BOARD???

You must use a resistor from the 12v to the LED. If you hook up a 3 watt or less LED to the 12v it will burn out do to extra voltage. Unless you are very familiar with electronics, I would not attempt this, but wait until a product is available.

The only way you could hook up LED's without a resistor is to hook up enough LED's in a row so that the current draw is equivalent to 12v. Once you do this the only positive result is that the LED's will have a longer life than the standard bulb. They will now be using the same 12v draw as the bulb.


Last edited by Lucifer : 05-25-2006 at 09:09 PM.
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