LED H4 Polarity Converter
Plug-in H4 polarity converter for selected earth-switched H4 headlight circuits. Confirm the circuit first. One converter per headlight.
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Description
LED H4 Polarity Converter for Earth-Switched Headlights
The Pro Vision Lighting™ LED H4 Polarity Converter is a plug-in accessory for selected vehicles with an earth-switched H4 headlight circuit. It helps compatible LED H4 headlight products operate correctly without re-wiring the vehicle’s original headlight loom.
What This H4 Polarity Converter Does
Most H4 headlight circuits do not need a polarity converter. Some vehicles use an earth-switched H4 arrangement instead of the more common actively switched circuit. Where that is confirmed, this converter connects through the original H4 high/low-beam connection to provide the correct polarity arrangement for compatible LED headlight upgrades.
Confirm the Circuit Before Ordering
Do not order a converter simply because a vehicle is older or uses H4 headlights. Confirm the circuit first, as a polarity converter is not required on every H4 vehicle. A local auto electrician can check the headlight wiring if you are unsure.
Check-First Earth-Switched H4 Examples
Factory-H4 Toyota examples that may require a polarity converter include LandCruiser 70 Series (11/1984–2023), LandCruiser 60 Series (1980–1990), LandCruiser 80 Series (1990–1998), selected H4 105 Series (1998–2007), and some H4 Toyota Hilux models approximately 1998–2005. These are check-first examples only; wiring can vary by vehicle, year and previous modifications.
Original H4 Connection
The converter is designed around the original H4 high/low-beam connection. It is a simple way to address a confirmed earth-switched circuit while retaining the vehicle’s original headlight wiring. It is not a substitute for diagnosing unrelated wiring, relay, connector or headlight faults.
How Many Do I Need?
Each cart quantity is one LED H4 Polarity Converter for one headlight. Order a quantity of two for a vehicle with two compatible H4 headlights. The price includes express delivery, normally 1–2 business days Australia-wide, and the converter has a 1-year Australian warranty.
Need Help?
Contact 1300 775 359 or [email protected]. A photo of the original H4 plug and the vehicle details can assist with check-first advice.
Overview
- PURPOSE: Plug-in H4 polarity converter for confirmed earth-switched H4 headlight circuits.
- BEST FOR: Compatible LED H4 headlight upgrades where the original vehicle circuit is confirmed as earth switched.
- CONNECTION: Original H4 high/low-beam connection.
- IMPORTANT: Confirm the circuit first; most H4 headlight systems do not need a converter.
- SUPPLIED AS: One converter per cart quantity, for one headlight.
- DELIVERY: Price includes express delivery, normally 1–2 business days Australia-wide.
- WARRANTY: 1-year Australian warranty.
What does an LED H4 polarity converter do?
It is a plug-in accessory for a confirmed earth-switched H4 headlight circuit. It helps compatible LED H4 headlight products operate correctly without re-wiring the vehicle’s original headlight loom.
Do all H4 headlights need a polarity converter?
No. Most H4 headlight circuits do not need one. Confirm the circuit first, because a polarity converter is only required for certain earth-switched H4 arrangements.
Which vehicles may have an earth-switched H4 headlight circuit?
Check-first examples include factory-H4 Toyota LandCruiser 70 Series (11/1984–2023), LandCruiser 60 Series (1980–1990), LandCruiser 80 Series (1990–1998), selected H4 105 Series (1998–2007), and some H4 Toyota Hilux models approximately 1998–2005. Wiring can vary by vehicle, year and previous modifications.
How do I know whether I need an H4 polarity converter?
Confirm the headlight circuit before ordering. If you are unsure, a local auto electrician can check the wiring, or you can contact Pro Vision Lighting™ with the vehicle details and a photo of the original H4 plug.
How many H4 polarity converters do I need?
Each cart quantity is one converter for one headlight. Order a quantity of two for a vehicle with two compatible H4 headlights.
What delivery and warranty apply to the H4 polarity converter?
The price includes express delivery, normally 1–2 business days Australia-wide, and the converter has a 1-year Australian warranty.
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