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Old 05-20-2014, 12:08 PM   #1
craigincali OP
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Amp draw of 1.7

I'm looking at putting a Ridgid industries 8"light bar in my 990. It says it has an Amp draw of 1.7 & uses 23.5 watts. Is that to much for my electric system to handle??
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Old 05-20-2014, 12:28 PM   #2
Mikef5000
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The bike, while riding (not low RPM) should safely have about 300 watts available. Your 23.5 watt light bar is no problem.
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Old 05-20-2014, 11:47 PM   #3
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The brake light bulbs use 21 watts each, this is nothing.

But, run a new power cable directly from the battery and control these lights with a relay to prevent the extra load on the light switch.
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Old 05-21-2014, 12:21 AM   #4
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Plus, I assume that this light bar will see occasional use only. Occasional use would not overload the stator or the battery the way long term continuous use will.

I doubt that light bar is even remotely legal for use on any road paid for by any state in the country, so use with "discretion".
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Old 05-21-2014, 07:14 PM   #5
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I DGAF about getting a ticket as long as I can see. It will have a new power cable directly from the battery and control these lights with a relay to prevent the extra load on the light switch. Yes, occasional use only.

Thanks guys !!
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Old 05-22-2014, 05:21 AM   #6
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The existing lighting system has ample spare capacity to run these without resorting to a relay.
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Old 05-22-2014, 06:52 PM   #7
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The existing lighting system has ample spare capacity to run these without resorting to a relay.
I used to relay everything... Trying to play it safe. Then I started having wires break/short, and a couple relays went bad. Now I play by the 'keep it simple' train of thought.

I'd also just run a jumper wire.
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Old 05-22-2014, 07:23 PM   #8
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Obviously I don't know much about electricity...I am going to have my buddy help me. He wires one off cars all the time. Thanks for your advice, I appreciate it !!
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Old 05-22-2014, 08:16 PM   #9
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The 'headlight' circuit on these runs a 55 Watt headlight, 5W parking light, 5W Tail Light and 5W Licence display lamp (the indicators and brake lights are on a different circuit). That adds up to 70W - or a tad under 5 amps@12V. The lighting circuit is protected by 15AMP fuse (180W@12V) - so 15-5 gives you 10A spare. Naturally you probably wouldn't push it right to the limit, but another 1.7 amps only gives ~ 7 amps and is quite within the limits of the harness and switch.

BTW the KTM Aux Light wires in straight to the loom.
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ciedema screwed with this post 05-22-2014 at 08:22 PM
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