HKWIRHAR 12v and 24v dual wiring harness kit with illuminated LED rocker switch
HKWIRHAR 12v and 24v dual wiring harness kit with illuminated LED rocker switch
Dual Output Wiring Harness
Dual Output Wiring Harness

Dual Output Wiring Harness


(3 customer reviews)


This wiring harness is the easiest way to connect one or two driving lights or light bars to your vehicle. With fireproof cable conduit, a high-quality backlit rocker switch and waterproof Deutsch connectors, it is designed to last for many years even in rough conditions.

Hard Korr Lighting offers free shipping Australia wideKorr offers a 2 year warranty on this productKorr Lighting offers 30 days free returns

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This is a plug-and-play wiring harness for use with all Hard Korr® LED driving lights and light bars. It includes piggyback connectors for H3 and H4 headlights to allow your auxiliary lights to be connected to your high beam circuit without cutting or soldering on most vehicles.

  • Can be used to connect one or two lights
  • Can be used with either a 12v or 24v setup
  • Suitable for DIY installation in vehicles with H3 or H4 high beam plugs
  • Fire-resistant
  • Compliant with Australian Design Rules (ADRs)
  • Will work with both positive and negative switched vehicles

The Hard Korr® Guarantee

All Hard Korr® products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 2-year Australian warranty and a 30-day money back guarantee.


Maximum load 25A @ 12V
Relay rating 40A (12V) / 20A (24V)
Fuse 25A
Light connectors Waterproof Deutsch DT

Pack Contents

1x Wiring loom
1x Illuminated LED rocker switch
1x 12v 40A relay
1x 24v relay
1x 25A inline fuse
2x Scotch locks
1x H3 piggyback connector
1x H4 piggyback connector

3 reviews for Dual Output Wiring Harness

  1. Mick W

    Just fitted this to my 100 series along with the Ultralite driving lights.. very easy install and works perfectly. Components seem like very good quality, time will tell!

  2. Max Karton

    What a nightmare. One blown fuse due to the switch wiring diagram being the wrong way round. Not to mention having to buy a piggy back adapter for a Holden Colorado with a 2 pin connector that did not fit this harness. Cut and replaced both 2 pin connectors.

    But XDS-400 22” is a great light bar. Buy the bar go elsewhere for the harness if you have a Colorado.

  3. miloderu

    A week ago I purchased a couple of those Korr XDW Series 45W Driving Light for my old 2001 Hilux ute 2WD along with this Dual Wiring Harness to power them up with. First laying the harness out inside engine bay, then connecting/fixing everything in place. Too Easy Lemon Squeeze. I must be honest, when I first tried to spark them up, nothing happened. HMMMMMMM. Trouble shooting, after wiggling all connections, thought, Hay Look they’ve supplied two Relays, may be I’ll try the other one. Yer right; I had connected the 24V one so simply installing the correct 12V Relay which worked a treat. Very Happy with this Dual Wiring Harness, simple easy plug and play, just watch out for those pesky 24V Relays.

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