40A Light Wiring Harness Kit

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This 40A wiring harness kit is a universal fit for LED daytime running lights, Off-road driving lights and LED work lights. This 12V wiring harness comes equipped with an On/Off switch, fuse, and relay. 


  • Pre-wired harness kit
  • Universal fit
  • Easy to install 
  • Heavy duty wiring suitable for LED light bars
  • Comes with relay module box, wiring harness w/ adapters, safety fuse box, and LED indicator on/off switch
  • Suitable for most light bars, spot lights, driving lights, work lamps
Parts Included
  • 1 x 40A wiring harness kit
  • 1 x On/Off switch
  • 1 x Relay Module Box
  • 1 x Fuse Box


We are now offering FREE SHIPPING on all orders!

Please also note that due to high demand please allow 4-5 weeks for delivery.

Returns Policy

You may return unopened items within 5 days of delivery for a full refund. Once a product is installed, we do not accept returns.

Note: Shipping is NOT covered on returned item(s), unless they arrive damaged.

If your item(s) arrives damaged, please send a email to sales@jwm4x4.com with photos to proceed with return.

We offer a 100% Satisfaction guarantee or your money back. Please contact us for return requests.

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