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DIY Retrofit Kit · Hawk Eye 3.0
Since establishing in 2021, Tech4Tourers has always put functionality ahead of pure looks and "head-turning" features. At the end of the day, you want a state-of-the-art lighting upgrade in every way possible — output, function, ease of fitment and aesthetics. Our kit delivers exactly that, built by T4T, who live and breathe offering the best upgrades on the market. Available in black or chrome shroud finish to suit your build.
Complete Kit
This is a true all-in-one retrofit solution — open your housings, fit the kit, seal them up. Done.
Not All Kits Are Equal
Thinking all retrofit kits are the same is like saying all 7" spotlights are the same. They're not — and here's where the difference lives.
ACE Series 3.0 Bi-LED
The same projectors in our built headlights — 55W high, 45W low, Osram 6000K pure white, sharp cut-off, engineered hotspot. Not cheap 2.5" projectors that fail to deliver in every way.
1N1 Wiring — One Plug
Our harness connects straight to your factory H4 plug and directly to the projector. Competitor 2N1 kits need an extra relay, battery power, ground, and wires run across your whole front end.
Seal It Properly
OEM butyl headlight sealant included — the same watertight sealant used in factory headlights, so your build seals up properly the first time.
Total Control · In Your Pocket
You came here because you care about looks — good news, so do we. The V4 ACS shroud range offers more customisation than ever: two free apps, every colour and effect over Bluetooth, chasing RGBW when you want it, 6000K pure white when you don't.
Shrouds — LED LAMP App
Full Chasing RGBW control with sequential indicators and start-up animations. Park lights on, open the app, pairs automatically.
Demon Eyes — LED BLE App
Independent full RGB control of the projector centre — pre-programmed functions, solid colours, pure white, or off.
Why Bi-LED Wins
Plenty of kits on the market still run HID projectors. Here's why we moved on — and why you should too.
| ACE Bi-LED | HID Kits |
| No ballasts or bulbs — built in | Requires ballasts & bulbs |
| 100% plug & play | Wiring nightmare |
| 50,000-hour lifespan | Often unstable |
| Easiest fitment on the market | Comparable to a jigsaw puzzle |
| OEM butyl sealant included | None |
| Programmable functions via app | None |
Proof, Not Promises
55W high beam. 45W low beam. 8,000 lumens of Osram 6000K pure white through a crystal-clear honeycomb lens — with a razor cut-off and a hotspot engineered 2–5 metres ahead of your bar work. This is what your factory reflectors are costing you every night drive.
The Build · What's Involved
Here's the honest overview of the retrofit process — full step-by-step 2026 instructions ship with every kit.
Open Your Housings
Heat your factory headlights at 80–100°C for 8–10 minutes to soften the sealant, then carefully separate the lens from the housing.
Prep & Paint
Scuff the chrome bezels, prime, and paint your chosen finish. This is where your build becomes yours — take your time here.
Fit The Projectors
Mount the ACE projectors through the factory bucket, square them to the housing, and lock them down. Vice grips and patience.
Seal It Back Up
Lay the supplied OEM butyl in the factory channel, reheat, mate the lens to the housing, clamp, and seal the rear cable exits.
Wire Three Wires
Yellow to your indicators, red to ignition or park lights, black to ground. Fuse the positives, swap high/low fuses to 7-amp, done.
Pair, Program, Aim
Scan the QR, apps pair automatically, set your animations and colours. Aim the beam with the two 8mm adjusters against a flat wall.
Finished your build? Show it off — upload photos of your installed lights in the Customer Reviews section below. We and the whole T4T community want to see it on your rig.
Honest Expectations
You'll open your factory headlights, remove the reflector internals, fit the projectors, and re-seal the housings. It's a rewarding weekend build for a capable DIYer — and every kit ships with step-by-step 2026 instructions. Get stuck? Message us. Support is part of the kit.
See it done first: search "tech4tourers" on YouTube and watch Liam and Matt (Built Prado) build their headlights with this exact kit, start to finish.
| Projectors | ACE Series 3.0 Bi-LED — 55W High / 45W Low |
| LEDs | Osram 6000K Pure White |
| Lux Output | Low 850 @ 10m · High 910 @ 10m |
| Lumens | 8,000lm |
| Lifespan | 50,000 Hours |
| Fitment | H4 Plug & Play — 1N1 Harness |
| Shroud Boards | T4T ACS V4 — Programmable Via App |
| Shroud | Hawk Eye — Chasing RGBW + Sequential |
| Demon Eyes | RGB App-Controlled (LED BLE) |
| Sealing | OEM Butyl Headlight Sealant Included |
| Sold As | Pair — Complete Kit |
| Warranty | 2 Years |
| Shipping | Same-Day Dispatch |
| Price | $549 AUD |
| Usage | For Off-Road Use Only |
Good To Know
Who is Tech4Tourers?
A proudly Australian-owned and operated business based in North Brisbane. Our mission is simple — premium 4x4 accessories that help you separate your rig from the rest.
How long until I get my kit?
Orders placed before 2:00 PM ship the same day from our Brisbane warehouse. Delivery typically takes 2–6 business days depending on your location.
Why choose a T4T kit?
Trusted by thousands of 4WDers, we only sell gear we've tested ourselves — chosen for real-world performance, backed by support that actually knows the product.
Overall rating: 4.7 / 5 from 32 reviews.
So much better than factory and they look sick, only issue was that I had to order the negative switching relays, which would have been nice to have as an option when ordering rather than just finding out when I was installing, but all in all a great product.
The kit is super easy to install and wiring is simple to sort out as well. Had them done in around 3.5hrs. Lights are amazingly bright on low beam.
Had to put interposing relays in to deal with the Hilux negative switched lights
Love the product amazing clarity at night driving. Only down side is customer service after is a bit slow but other then that it’s straight forward.
This new headlight is absolutely amazing! The packaging quality is excellent, and it was easy to install. It significantly improved visibility and performance. Definitely worth the price. Thanks, Tech 4 Tourer!
Little sketch out making the headlights but after giving it a crack n asking people couple questions. It turned out mint
They look mint couldn't be more happier, only think is that I wish I could get the indicator light to sync up with the rest but they look 👌
Mint bloody lights wiring was a bit challenging for me as im not a auto electrician but got there in the end. I had to buy a negative to positive converter for my car and i had to buy a resister because they were flashing really fast other than that there amazing and bright.
I've had the turbine ones from ********, and the LEDs in the eyes stuffed up so I went with tech4tourers with a different style and they are so much better, and their led instead of hid, which make them better and brighter too been led.
got her lookin hawt
Really good experience. Only issue was i don’t know to properly seal the back without blocking the air flow for the fan. So might get water inside after a deep crossing not sure yet.
The lights are bloody unreal easy installation and arrived fast couldn’t be more happy with them good quality and the brightness is about 10x brighter then the last led headlight I had before hand 100% would recommend.
Unreal bit of kit. Came with everything I needed. Instructions were clear but were a little vague when running the wires. YouTube video would make the installation process quicker. If you’ve never dealt with 12v wiring before, probably best to get a professional to install. Overall, highly recommend for anyone looking to have a crack at building your own custom lights. Cheers 🤙
Great product. Easy to install and barely need any tools. Anyone could do the DIY kit. I done most of it with my Leatherman. Got a bit confused with the wiring but I’m no electrician. Figured it out, though. Happy with the lights and they’re a lot brighter and whiter than I expected. I drive with them on during the day and watch everyone wrap their head around the corner just to check them out.
I love the look of my new lights
Quality service! Instructions were clear, easy to install and look mint. Quality and bright light output compared to other lights, thanks again!
Good kit took around 2 hours to install. cheers josh
Great kit, everything included and quality is very good.
Wicked product, changed the front end look, easy to install stocked with the outcome.
Killer kit. Everything need and more. Definitely recommend to anyone looking for a much needed upgrade. Was a bit scared to take the step and do it myself at first but with the help of the team it was easy as. Ta 👍🏻
The light quality is awesome and the team were extremely Helpful. The instructions were very helpful and easy to understand.
Super easy to fit!
Overall product great only thing was seller could let the customer know what was going on with order being delayed due to parts waiting to complete kit but was a top bloke he upgraded me to premium.
Kit includes everything. Headlight sealant and RGBW park lights were a free bonus. Works great, very happy. 3 days to arrive
Unfortunately, a bit disappointed with these lights. The lights are actually really good, are bright and were well packaged. However, the lights were missing a h4 canbus module, which should come standard as it is an extra $70 for the Narva (only ones in stock that were available), instructions were really unclear and were prepared with zero effort. The RGB app is also one of the worst apps I have ever seen. Really taking away from the premium feeling you initially have when buying the product, and opening the box. Such a shame given the actual product is good. If the T4T team wants to discuss offline, I would be happy to provide detailed feedback on how to improve the experience.
Product is not in yet Product does look great though I found the instructions still a little hard to understand
Bloody grouse quality 💯
Really Good
Best in the business 👍🏼
I'll start with the negative first Instructions are a bit vague but sused it in the end. Hawk eye indicators on drivers side starts on right and illuminates to left passenger side instead of starting on the left side it starts on the right and illuminates to left. Leads from cam to ballast could be a bit longer Positives lights are 💯 better vision.
Top Notch product. Bought as soon as the RGBW version was released so now I have a different kit on both cars. Awesome product guys
Very quick delivery Fair price Great seller
