Product Specifications

K6 Series SJ28 mm Canbus LED Bulb for Interior and License Plate Lights

The K6 SJ28 mm LED bulb is designed as a direct upgrade for standard SJ28 mm halogen and basic LED bulbs in interior and license plate positions. With a compact 12 mm body and approximately 25 mm overall length, it fits easily into tight lamp housings while delivering bright, clean white light. A built in Canbus circuit helps reduce dashboard warning messages on many modern vehicles, making this bulb a practical choice for both workshops and DIY users who want a simple plug in solution.

Compact SJ28 mm Form Factor for Easy Upgrades

This bulb keeps the familiar SJ footprint so installation is as straightforward as swapping the original lamp. The slim cylindrical body and flat LED face are sized to slide into small housings such as map lights, dome lamps, glovebox lamps and license plate lights. The compact design also helps maintain a factory like appearance without protruding parts or exposed wiring.

High Efficiency LUXEON 3020 LED Chip

At the heart of the K6 SJ28 mm bulb is a high quality LUXEON 3020 SMD LED. This chip is chosen for its balance of brightness, efficiency and reliability. Compared with many generic LEDs, it produces a more consistent color and stronger output at the same current. The result is a crisp, high clarity beam that makes printed text, controls and license plates easier to read at night. The cool white tone refreshes the cabin look and improves contrast compared with the warm, yellowish light from halogen bulbs.

Aluminum PCB for Better Heat Management

The LED is mounted on an aluminum substrate PCB which serves as an efficient heat spreader. Heat generated by the chip is transferred away from the light emitting surface into the body of the bulb, helping maintain stable performance during long periods of use. Better thermal management supports LED longevity and reduces the risk of color shift or early failure. For vehicles that run interior lights for extended times, such as taxis, ride share vehicles or delivery fleets, this adds real value over low cost plastic based designs.

Built In Canbus Circuit for Error Reduction

Many modern vehicles monitor the status of lamps through the electrical load on each circuit. When a conventional LED bulb draws much less current than the original halogen lamp, the vehicle may interpret this as a failure and display a bulb out warning. The K6 SJ28 mm integrates a Canbus circuit designed to mimic the expected load more closely, helping to reduce these warnings in compatible vehicles. This makes it a practical option for workshops that want to upgrade lighting without adding external resistors or complex wiring.

Low Current Draw and Wide Voltage Range

The bulb draws significantly less current than typical halogen SJ28 mm lamps while still delivering strong brightness. The operating range of 9–16 V DC covers most passenger car and light commercial electrical systems, including vehicles with charging voltages above 14 V. This wide tolerance ensures stable performance during cold starts, voltage fluctuations and charging cycles, and helps protect the LED from damage caused by brief spikes.

Wide Angle Output for Interior and Plate Lighting

The optical layout of the K6 SJ28 mm is optimized for close range illumination. Light is emitted in a broad pattern that fills interior housings and license plate recesses, reducing dark spots and hot spots. In reading and dome light positions, the wider spread helps illuminate seats, floors and storage areas more evenly, improving comfort and usability. On the rear of the vehicle, the bright, uniform plate light enhances plate visibility for cameras and inspection without causing glare.

Certified Quality and Reliable Performance

The K6 SJ28 mm series is backed by authoritative testing and certification to give installers and end users extra confidence. The bulb design holds an appearance patent, and production is supported by a quality system that has passed multiple third-party audits. Compliance with major automotive-grade standards such as CE and RoHS helps ensure electrical safety, low electromagnetic interference, and environmentally responsible materials. Combined with strict factory inspection on every batch, these certifications mean the K6 SJ28 mm Canbus LED bulb delivers stable, trustworthy performance for professional retrofit projects and long-term fleet use.