Features
• Purpose-built for H4/9003 LED conversions to address CANBUS-related problems such as dash fault messages (headlight/high-beam), rapid flicker, lights shutting off a few minutes after start-up, or lamps turning off when the engine is ignited.
• Integrated load resistor and capacitor circuitry mimics halogen load to stabilise current draw and suppress error codes; also helps reduce audio interference/buzzing in many vehicles.
• True plug-and-play: simply connect between the factory H4 socket and your H4 LED lamp—no splicing required on most installations.
• Aids consistent light output by damping voltage spikes that can trigger hyper-flash or oscillation on sensitive headlight circuits.
• Compact modules with insulated leads are easy to route and secure in the engine bay.
• Fitment limits clearly stated: not for Mazda applications and not for Volkswagen models. On power-sensing systems (e.g., BMW MINI, Jeep, some EU/US vehicles) an LED bulb around 55 W per piece is recommended to clear detection faults.
Specifications
• CANBUS fitment: H4 (9003) only
• Intended use: Headlight circuits (LED upgrades replacing halogen)
• Core design: Load resistor + capacitor anti-flicker/error canceller
• Install method: Inline, plug-and-play, no additional modification typically needed
• Vehicle notes: Not applicable for Mazda; incompatible with Volkswagen. For models with power detection (BMW MINI, Jeep, and some European/American cars), pair with approx. 55 W LED bulbs per side. Error removal is not guaranteed in all cases.
• Condition/colour: New; as shown
Products include
• 2 × H4 CANBUS Decoders/Cancellers for LED Headlights
Precautionary Note
Please allow a 1–3 cm deviation due to manual measurement. Actual colour may be slightly different from the images due to lighting and monitor differences. Verify your vehicle uses the H4/9003 interface and confirm rotation/space before installation. Disconnect the ignition and remove keys prior to fitting; ensure all connectors are fully seated and free of corro