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Why does upgrade harness make lights dim

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Old 12-31-2012, 02:48 PM   #1
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Why does upgrade harness make lights dim

I am running some Hella 100/80w H4 offroad bulbs. I decided to upgrade my harness due to the comments of wires melting and so forth. I ordered a plug n play harness (Circuit Performance H4 Heavy Duty Harness from When i hooked them up, the lights were actually dimmer than with stock harness. Is there a fix or something for this? Had no problems with stock stuff as of now by the way. Thanks Yall!!
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Old 01-03-2013, 05:57 PM   #2
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I have had the same problem with harnesses for need to run straight to the battery I hope this helps
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