STEDI Single Connector Plug & Play SMART Harness™ High Beam Driving Light Wiring
Single Connector Plug & Play SMART Harness™ — High Beam Driving Light Wiring
Cut the guesswork and install your driving lights in minutes with the plug & play SMART Harness™ V2.0. No cutting or soldering—auto-detects positive/negative switching and includes switch, relay and fuse for a complete high‑beam trigger solution compatible with most H3/H4 vehicles. Order now to light up the road tonight — add to cart or contact us for vehicle‑specific adapters.
- Click & Collect: 2 Hour Click and Collect on All In Stock Items
- Installation & Fitment: We can fit this to your Vehicle - Contact Us for a Quote!
- Plug-and-play harness that triggers driving lights from your high beam using H3 (HB3) and H4 adapters — no cutting or soldering; simply unplug the headlight connector and plug in the adapter.
- V2.0 electronics auto-detect positive or negative switched systems for true out-of-the-box compatibility with many vehicles (e.g., Toyota, Ford Ranger, Mazda BT50).
- Includes all installation components: push ON/OFF switch, 60A relay, 30A fuse, heat-shrink wrapped relay, ribbed cable protectors and instructions; Deutsch DT waterproof light connector for one light bar.
- Cable runs: relay→switch 2.4 m, relay→driving light 2.0 m, relay→H4/HB3 adapter 2.0 m (total ≈ 6.4 m).
- Electrical specs: 12 V kit, 30A fuse, relay rated 60A, maximum load 25A @ 12V.
- UV-rated insulation and quick-fit design — driving lights only activate with high beam; switch functions as an isolator.
- Works with non-HB3/H4 vehicles using separate adapters (H1, H7, H9) or available vehicle-specific adaptors (Amarok, 200 Series LandCruiser, Triton, D-Max/MU-X, Ranger/Raptor, Colorado, Navara).
View Full Details, Specifications and Compatiability on Supplier Website
| WIRING KIT RATING | 12vDC 30A |
|---|---|
| RELAY RATING | 12vDC 60A |
| FUSE | 30A |
| LIGHT CONNECTOR | Deutsch DT Waterproof |
| INSTRUCTION | Included |
| MAX LOAD | 25A @12v |
The nitty gritty.
Plug & Play Wiring Harness for Quick Fit installation of your driving lights. The supplied H3 (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 headlight's bulb, plug in our adapter and you're done! Driving lights will only trigger from a high beam, and the switch will act only as an isolator.
Our new V2.0 has built-in electronics 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 guesswork out of it.
Contains everything you need to get your lights connected: ON/OFF Switch, 60A Relay, 30A Fuse, ribbed cable protectors, heat shrink wrapped relay.
- Featuring a total of 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 30A Rated Fuse Kit
- 12vDC 40A Switching Relay
- Push Button ON/OFF Switch
- UV Rated Insulation
- Instruction included.
- 1 x DT connector to connect 1 Light Bar
HB3 & H4 are the most common wiring connects found in most popular makes and models. If your car does not use H4 or HB3, this wiring harness can still be used to connect to a high beam. We also sell separately H1, H9 & H7, as well as vehicle-specific adaptors for the Amarok, 200 series Landcruiser, MQ & MR Triton, Isuzu M-UX / D-Max, Ranger / Raptor PX2 & PX3 7 Holden Colorado & Nissan D23 Navara.
