P21W (382) Super Canbus Red LED Brake & Fog Light Bulbs 300LM Fan Cooled

P21W (382) Super Canbus Red LED Brake & Fog Light Bulbs 300LM Fan Cooled

Upgrade your vehicle's original P21W (382) filament bulbs with these premium Super Canbus Red LED replacements. Producing a strong 300-lumen red output, these high-performance bulbs are ideal for compatible brake light, rear fog light and other single-intensity red lighting applications.

Each bulb combines automotive-grade LED chips, an intelligent Super Canbus driver and an integrated high-speed cooling fan to provide fast illumination, stable performance and improved compatibility with modern vehicle electrical systems.

Key Features

• Super Canbus P21W (382) Red LED Bulbs
• Direct replacement for original single-filament bulbs
• 300 Lumens red light output
• 18W power output per bulb
• Strong, pure red LED colour
• Ideal for compatible brake and rear fog light applications
• Automotive-grade LED chips
• Built-in intelligent Super Canbus driver
• Integrated high-speed cooling fan
• Aviation-grade aluminium construction
• 360° light distribution
• Plug & Play installation
• Non-polarity design
• Instant illumination
• Energy-efficient operation
• Over 40,000-hour lifespan
• Supplied as a pair

Designed for Single-Intensity Red Lighting

The P21W (382) is a single-intensity bulb type designed to perform one lighting function. Unlike a dual-intensity P21/5W bulb, the P21W operates at one brightness level whenever the relevant circuit is activated.

This makes the red version suitable for compatible brake lights, rear fog lights and other lamp positions that require a single-intensity red P21W bulb.

Pure Red LED Output

These bulbs produce red light directly from the LED chips rather than relying on white light passing through a coloured lens.

This provides a rich and clearly defined red output, making the bulbs suitable for use behind clear or red lamp lenses where a red P21W bulb is required.

A dedicated red LED can also deliver a cleaner and more consistent colour through a red lens than a white LED replacement.

Faster Brake Light Response

LED technology reaches full brightness almost instantly when electrical power is applied. When used in a compatible brake light application, this faster response helps make your braking intentions more noticeable to following drivers.

The immediate illumination also provides a sharper and more modern lighting appearance than a conventional filament bulb.

Intelligent Super Canbus Technology

Each bulb incorporates an intelligent Super Canbus driver designed to minimise dashboard bulb warning messages, flickering, shut-off issues and electrical interference on many modern vehicles.

Whilst compatible with most Canbus systems, some vehicles with particularly sensitive bulb-monitoring circuits may still require an additional load resistor or Canbus decoder.

Advanced Active Cooling

A built-in high-speed turbine cooling fan continuously draws heat away from the LED chips, helping maintain stable brightness during prolonged use.

The fan works together with the CNC-machined aviation-grade aluminium housing to provide efficient heat dissipation and support reliable long-term performance.

360° LED Light Distribution

The multi-sided LED chip arrangement produces wide and even illumination throughout the lamp reflector.

This design helps closely replicate the position of the original filament, supporting consistent light distribution and improved visibility from different viewing angles.

Ideal Applications

• Brake Lights
• Stop Lights
• Rear Fog Lights
• Rear Auxiliary Lights, vehicle dependent
• Clear lamp units requiring a red bulb
• Red lamp units requiring a P21W replacement
• Any compatible application requiring a P21W bulb
• Any compatible application requiring a 382 bulb
• Any compatible application requiring a BA15S single-contact base

Technical Specifications

P21W, 382 and BA15S Compatibility

P21W and 382 are commonly used references for the same single-intensity automotive bulb type.

These bulbs use a BA15S single-contact base with one electrical contact on the bottom and two side locating pins positioned directly opposite each other at the same height.

Do not confuse the BA15S base with similar-looking bulb types such as BAU15S, BAW15S, BAY15D, BA15D or BAZ15D. These bases use different locating-pin or contact arrangements and are not interchangeable.

Please remove and inspect your existing bulb before ordering, paying particular attention to the side-pin position and the number of electrical contacts on the bottom.

Package Contents

• 2 × Super Canbus P21W (382) Red LED Bulbs
• Retail Presentation Box

Important Information

• Please check your existing bulb type and base before ordering.
• Designed for vehicles requiring P21W (382) BA15S single-contact bulbs.
• Please confirm that a red bulb is suitable for the intended lighting function.
• Suitable for compatible brake light and rear fog light applications.
• Not suitable as a direct replacement for P21/5W dual-intensity bulbs.
• Do not order solely by vehicle make, model or registration number.
• Canbus compatible with most vehicles.
• Some vehicles with highly sensitive bulb-monitoring systems may still require additional resistors or decoders.
• Suitable for 12V vehicle electrical systems.
• Road-use legality depends on the vehicle, lamp unit and intended application.

Why Buy from HIDS-DIRECT?

HIDS-DIRECT specialises in premium automotive lighting products, supplying high-quality LED upgrades trusted by thousands of customers across the UK.

Every product is carefully selected for performance, reliability and ease of installation, helping you upgrade your vehicle with confidence.

Frequently Asked Questions

Will these P21W red LED bulbs fit my vehicle?

These bulbs are designed for vehicles that use a P21W (382) bulb with a BA15S single-contact base. Please remove and inspect your existing bulb, consult your vehicle handbook or compare the base before ordering.

Are P21W and 382 the same bulb type?

Yes. P21W and 382 are commonly used references for the same single-intensity automotive bulb type. They normally use a BA15S base with one bottom contact and two side pins positioned opposite each other at the same height.

What is the difference between P21W and P21/5W?

P21W is a single-intensity bulb with one electrical contact and one light output. P21/5W is a dual-intensity bulb with two electrical contacts and separate high and low outputs. The bulb bases are different and are not interchangeable.

Can these bulbs be used as brake lights?

Yes, provided your vehicle uses a P21W (382) BA15S bulb for the brake light function. Please check your existing bulb and lamp configuration before ordering.

Can these bulbs be used as rear fog lights?

Yes, provided your vehicle uses a P21W (382) BA15S bulb in the rear fog lamp. The dedicated red LED output makes them suitable for compatible rear fog light applications.

Can these bulbs be used behind a clear lens?

Yes, provided the lamp requires a red bulb and the BA15S base is correct. The LED chips generate red light directly, making the bulbs suitable for compatible clear lamp units.

Can these bulbs be used behind a red lens?

Yes, provided the bulb type and electrical specifications are compatible. A dedicated red LED can produce a rich and clearly defined colour through a red lamp lens.

Are these bulbs Canbus compatible?

Yes. They contain built-in Super Canbus electronics designed to reduce dashboard bulb warnings, flickering and shut-off issues on many modern vehicles. Some highly sensitive vehicles may still require an additional resistor or decoder.

What is the difference between BA15S and BAW15S?

A BA15S base has two side pins positioned directly opposite each other at the same height. A BAW15S base uses a different keyed pin arrangement. The two bases are not interchangeable.

Are these bulbs polarity sensitive?

No. They use a non-polarity design, allowing them to operate regardless of the positive and negative electrical orientation within a compatible socket.

Do these bulbs have a cooling fan?

Yes. Each bulb includes a built-in high-speed turbine fan that helps remove heat from the LED chips and maintain stable performance during prolonged operation.

Do I need to modify the wiring?

No. These bulbs are designed as a direct Plug & Play replacement for a compatible P21W BA15S socket. No rewiring or coding is normally required.

How many bulbs are supplied?

This product is supplied as a pack of two red LED bulbs.

Are these red LED bulbs road legal?

Road-use legality depends on the vehicle, lamp unit and intended function. LED retrofit bulbs may not be approved for every exterior lighting application, so please check the relevant vehicle-lighting regulations before installation.