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HurstRob
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« on: September 26, 2015, 06:42:59 PM » |
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I am just now getting around to installing a Cobra light bar that I bought from one of the gang about a year ago. I am installing a Kuryakan 3 toggle switch that fits in place of the brake fluid reservoir cap. Each of the items it toggles is rated for 10 amps, one is going to the Dan-Marc fuel shut off and the other to the Cobra Light bar head lights only. My question is what is the amp rating on the light bar and if it exceeds what I can do here, can I change the bulb to LED to lower the amp requirements.
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DK
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« Reply #1 on: September 26, 2015, 07:17:10 PM » |
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Why put a switch on DanMarc?
I would switch it with the ignition.
I don't know the answer to your question though.
Dan
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Machinery has a mysterious soul and a mind of its own.
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big poppa pump
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« Reply #2 on: September 26, 2015, 07:57:37 PM » |
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Not sure on the wattage of the Cobra spots, but I'm pretty sure that each one is not more than 50W. Taking into consideration that a 50W halogen takes uses about 4.1 Amps, 2 of them will be around 8 Amps. So you should be good with a 10A switch. However to be on the safe side, I would recommend putting the 12V on a relay and use the switch on the ground.
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VRCC#35870 VRCCDS#0266 1998 Valkyrie Hot Rod  |
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WintrSol
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« Reply #3 on: September 26, 2015, 08:00:58 PM » |
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Do you know the Watt rating of the bulbs in the lamps? If so, add them up and divide by 12.6V for a close approximation. For example, if there are two, 55W bulbs, that is 110/12.6, or a bit less than 9A; add about 10% for normal operating voltage, and you get nearly 10A. You could use the switch to turn a relay on, which are often rated 20-30A, for a better margin.
You can replace most bulbs with high-brightness LEDs, but they likely won't be as bright. For example, the brightest LEDs I could find for my lights are 30W equivalent, so though a lot whiter, they are noticeably dimmer than the 55W bulbs they replaced. I kept them in, figuring they are more for being seen that brightening the road.
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98 Honda Valkyrie GL1500CT Tourer
Photo of my FIL Jack, in honor of his WWII service
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HurstRob
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« Reply #4 on: September 27, 2015, 04:05:36 AM » |
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Thanks guys useful info,
I like the idea of a second switch for the fuel shut off
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salty1
Member
Posts: 2359
"Flyka"
Spokane, WA or Tucson, AZ
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« Reply #5 on: September 27, 2015, 04:54:04 AM » |
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I think idea of using the second switch as a fuel shutoff is interesting, function and theft protection. However, IMO you should use the other switch as the trigger for the light bar relay and protect the rest of your bikes circuitry as others have indicated.
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« Last Edit: September 27, 2015, 05:27:00 PM by salty1 »
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My rides: 1998 GL1500C, 2000 GL 1500CF,2006 GL 1800 3A   |
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HurstRob
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« Reply #6 on: September 27, 2015, 04:02:18 PM » |
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always good info from the Valkers
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