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kc lights keep blowing fuse

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Old 09-26-2014, 08:43 AM
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Default kc lights keep blowing fuse

i have a roll bar with 5 rectangular kc lights on it. they're all wired to one wire and runs to the dash for a switch. the power cable comes directly from the battery with an aluminum wire in line fuse with a 30amp fuse in. after about 20 minutes of being on the fuse blows. the copper wires seem cool but the aluminum wire with the fuse is hot. anyone have suggestions to stop the fuse from blowing? I'm not good with electricity at all so i need some ideas. thanks in advance
 
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Old 09-26-2014, 08:53 AM
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How many watts are the lights?
 
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Old 09-26-2014, 08:58 AM
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honestly....couldn't tell you. they were on the light bar when i bought the truck, but the roll bar wasn't attached. I'll see if i can find then online
 
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Old 09-26-2014, 09:04 AM
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well can't find anything. any way i can find the wattage on the light?
 
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Old 09-26-2014, 09:28 AM
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Should say on it somewhere..... might have to pull a bulb to check.
 
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Old 09-26-2014, 09:42 AM
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hate to sound like an idiot...but how are the bulbs removed from the housing on the rectangular ones?
 
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Old 09-26-2014, 09:56 AM
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No clue. Would have to see it.
 
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Old 09-26-2014, 10:53 AM
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Definatly need to add a relay.
 
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Old 09-26-2014, 11:06 AM
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alright they're 5 competition 4214 100w lights if i remember correctly from basic electricity from a&p school, it's drawing about 35 amps while running i think. so would a relay help? funny thing is the 14 gauge wire does fine with all that draw, but the aluminum fuse 12 gauge wire gets hot. I'm thinking wiring a 40 amp relay in and putting a 45 amp fuse in
 

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Old 09-26-2014, 11:56 AM
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I would replace the feed wires with some fat copper. Bigger than what it really needs.... Relay wouldn't hurt either.
 


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