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Old 02-08-2014, 03:39 PM   #16
markgsnw OP
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here's what I believe will work:




Feed from brake light switch-----------|>|------------LED Brake Lights
|
|
|
|-----------------------TIR 3




The diode blocks the 6 volt feedback from the LED cluster. The TIR3 gets either 0 volts or 13 volts, which is desirable. No relay required.
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Old 02-10-2014, 06:28 PM   #17
StopnExsanguination
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I use a 3rd brake light flasher to work the Whelen. It works well and it was not too difficult to install. Here's a link for one similar to what I use.

http://www.motorcyclelarry.com/index.php?main_page=product_info&cPath=7&products_id=319

Good luck with it. Those lights are bright!
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Old 02-14-2014, 06:06 AM   #18
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I run Nova strobe hooked up to brake light leed, when bike is on work as a extra tail light but when brakes applied will strobe one of 8 flash patterns.



On Maggie's bike we run two 3/4" strobe lights, when brakes applied it will strobe 3 series of 3 flashes and stay solid red.
Nice and small, we noticed that "phone booths" keep the distance behind us.

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ghostrider.y2k screwed with this post 02-14-2014 at 06:12 AM
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Old 02-14-2014, 11:42 AM   #19
markgsnw OP
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Quote:
Originally Posted by markgsnw View Post
here's what I believe will work:




Feed from brake light switch-----------|>|------------LED Brake Lights
|
|
|
|-----------------------TIR 3




The diode blocks the 6 volt feedback from the LED cluster. The TIR3 gets either 0 volts or 13 volts, which is desirable. No relay required.




here's what I think I know about having a LED tail/brake light cluster:


A conventional incandescent setup has two bulbs (or a single bulb with two filaments), so that the brake light circuit is entirely separate from the tail light.


The LED array is, essentially, a single circuit, or a single "filament". Six volts is sent to it all the time to create tail lighting, and 13 volts is sent to it to create brake lighting.


In order to add an additional discreet brake light, we somehow have to mask or block the six volts from the new device. One way to do that is to use the diode in the sketch above. A diode is a one way valve, so that the 13 volts from the brake light switch pass though it, and the six volts that are always present are blocked. It's a fairly simple and inexpensive solution (diodes run about five cents each), the down side is that it involves cutting the brake light wire.


Hope that helps with the collective knowledge.
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Old 02-14-2014, 12:37 PM   #20
James Adams
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Quote:
Originally Posted by markgsnw View Post
The LED array is, essentially, a single circuit, or a single "filament". Six volts is sent to it all the time to create tail lighting, and 13 volts is sent to it to create brake lighting.
It's probably not really six volts, just a PWM signal at ~50% so it looks like 6V in a basic DC voltmeter. But the circuit with the diode should work fine.

Alternatively, you can use a trailer light converter designed to take that PWM signal that is being sent to the taillight and "decode" it for a basic flat-4 trailer connector. This could be put to use to isolate the brake light and power the Whelen.

Something like this.
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Old 02-14-2014, 11:22 PM   #21
markgsnw OP
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I think I'll stick with the diode
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Old 02-16-2014, 07:41 AM   #22
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Two diodes in parallel for redundancy
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Old 04-23-2014, 04:04 AM   #23
Shaggie
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Quote:
Originally Posted by ghostrider.y2k View Post
I run Nova strobe hooked up to brake light leed, when bike is on work as a extra tail light but when brakes applied will strobe one of 8 flash patterns.



On Maggie's bike we run two 3/4" strobe lights, when brakes applied it will strobe 3 series of 3 flashes and stay solid red.
Nice and small, we noticed that "phone booths" keep the distance behind us.

more info/pics/install on both of these please? linkys to sellers etc? sorry for hijack

S
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Old 04-29-2014, 09:06 PM   #24
markgsnw OP
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Quote:
Originally Posted by Shaggie View Post
more info/pics/install on both of these please? linkys to sellers etc? sorry for hijack

S

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