Plug and Play High Beam Driving Light Wiring SMART Harness™


Special Price: $49.99

rrp: $49.99
Plug and Play High Beam Driving Light Wiring SMART Harness™ is available for purchase in increments of 1


Universal Quick Fit SMART Harness - High Beam triggered.


Dual Output Quick Fit SMART Harness | Our all-in-one wiring loom

Our all new Plug & Play SMART Harness for Quick Fit installation of your driving lights. Incredible High Current 10AWG cable, negative switch compatible, waterproof switch & DTP to DT Reducers bridging the compatibility between the two connector types. Our SMART Harness™ has been designed around the consumer to simplify the installation process.

The supplied HB3 and H4 Adapters trigger your driving lights from your high beam without cutting or soldering any wiring.  Simply unplug your HB3 or H4 connector at the back of your head lights bulb, plug in our adapter and you're done! Driving lights will only trigger from high beam, and the switch will act only as an isolator.  

Our new SMART Harness has built in micro-processor that automatically detects whether your system is positive or negative switched, and will work right out of the box without any modification whatsoever. Toyota's, Ford Ranger, Mazda BT50 among many other popular 4x4 are notorious for being very difficult and costly to wire driving lights to high beam, our quick fit harness takes all the guess work out of it. 

Contains everything you need to get your lights connected:  ON/OFF Switch, 40A Relay, 35A Fuse, ribbed cable protectors, heat shrink wrapped relay, DTP to DT Reducers. 

  • Featuring a total 4.8 meters of wiring (full stretched out) 
  • 2.4m of cabling from Relay to Switch 
  • 2.0m of cabling from Driving Light connector to Relay
  • 2.0m from H4 or HB3 Adapter to Relay 
  • Total cable length 6.4m 
  • 12vDC 35A Rated Fuse Kit
  • 12vDC 60A Switching Relay
  • Push Button ON/OFF Switch 
  • UV Rated Insulation
  • Instruction included. 

HB3 & H4 are the most common wiring connects found in most popular makes and models. In the event that your car does not use H4 or HB3, this wiring harness can still be used to connect to high beam. We also sell separately H1, H9 & H7 piggy back adaptors. 



MAX LOAD 35A @12v

What's in the box

What’s in the box

  • 1 x STEDI SMART Harness
  • Dual Output with DTP connector
  • DTP to DT Reducers
  • HB3 + H4 Piggy Back Adaptors
  • Waterproof Switch
  • Instruction Leaflet
  • Media Box
  • Media Box
  • Media Box
  • Media Box
  • Media Box

Product Questions

Sort by ASC
G'day, Can you send me more information on how this wiring kit is installed?
Hi, I am looking at buying 2 of the ST3400 4" 18W Cree LED's to mount either side of my windscreen (Jeep), and wanted to know what workable length of wiring is on this wiring kit from the relay to the light, e.g. will there be enough split cable to connect 2 lights approx 1500mm apart?

If not what other kit's or accessories would you propose?
Looking for and driving light wiring kit , pigy back plug and oem type switch for a 2018 hilux sr5 can you help me out?


Write a Review
smart driving light harness
Review by kev
great product well made easy to install it would be good to see a switch option to suit make of vehicle (Posted on 20/04/2018)
time saver
Review by Dave
good value good quality great for the larger motorcycle in your life when you wont those big spot light's done right and no hassles. (Posted on 18/04/2018)
Review by Neil
Absolutely brilliant bit of kit, well made and SUPER easy to install. Would HIGHLY recommend this product to anyone. A++++++ (Posted on 8/04/2018)
Dual Output Quick Fit SMART Harness
Review by Jas
Great quality harness at a great price. Really happy with this. Plug and play as it says. Nice thick wiring to handle the load, not like some of the other cheap ones you can buy which are made of thinner power wires. (Posted on 26/03/2018)
great product
Review by ash
installed this a few weeks back and was so simple literally installed in 10 mins would highly recommend to others for a simple nd quick shipped product 10/10 (Posted on 18/03/2018)
Review by Daniel
GREAT product & makes a diy install very easy .. save yourself a small fortune at the auto sparkies & get one of these instead.I have limited/basic electrical wiring skills & the install was a breeze.

Cheers Dan (Posted on 30/01/2018)
Does what it says
Review by Pockets
Makes wiring spotlights easy and straight forward. Allowed me to fit driving lights onto my DL 1000 V-Strom quick and easy. A bit more cable than was needed. Maybe a kit for bikes? (Posted on 28/11/2017)
Harness pros and cons
Review by Matthew B
To start with it does exactly whats needed, making setting up lights easier beyond having to cut and crimp or solder! Now lets break it down:
Pros - easy to install
- Good connections/harness options to suit different hb plugs.
- best wiring kit warranty around
- well priced

Cons (though not too bad)
- positive and negative wires from battery could be slightly longer by approx 30cm.
- For the RC colorado's having the battery on the lh side of the car meant i couldnt run it through the firewall WITH the loom on the rh. (But im just a picky bugger)
- relay didnt work (i had a spare so wasnt fussed, and the one i got was probably just a lemon anyway).

To be honest with the price, warranty and great CUSTOmer service by stedi i would recommend this HARNESs or any other product of theres 110%! Will be buying from them again thats for sure! (Posted on 10/11/2017)
Stedi harness
Review by Sharpie
Great product, Very easy to install. No instructions supplied, but it was so easy i didnt need them anyway. Only Thing i would recommend is providing the size of the drill for the switch - 19mm. I used a step driLl. (Posted on 8/09/2017)
Very Happy
Review by Mark
Well Made harness, very happy (Posted on 4/09/2017)
Review by superchargedjay
Negative switched works perfectly on my Toyota very happy thank you (Posted on 20/06/2016)

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