W21/5W (7443) Super Canbus Amber LED Indicator Bulbs 1100LM Fan Cooled

W21/5W (7443) Super Canbus Amber LED Indicator Bulbs 1100LM Fan Cooled

Upgrade your vehicle's original W21/5W (7443) filament bulbs with these premium Super Canbus Amber LED replacements. Producing up to 1100 lumens of intense amber light on high output whilst retaining a lower output for compatible dual-function lighting systems, these high-performance LED bulbs deliver excellent visibility, rapid illumination and a modern OEM-style appearance.

Designed as a direct replacement for compatible W21/5W (7443) bulbs, each LED incorporates automotive-grade LED chips, intelligent Super Canbus electronics and an integrated high-speed cooling fan for reliable long-term performance.

Key Features

• Super Canbus W21/5W (7443) Amber LED Bulbs
• Dual-intensity operation
• Up to 1100 Lumens high-output amber light
• Lower secondary output
• Pure Amber LED colour
• 18W power output per bulb
• Automotive-grade LED chips
• Built-in intelligent Super Canbus driver
• Designed to reduce dashboard bulb warnings and flickering
• Integrated high-speed turbine cooling fan
• Aviation-grade aluminium construction
• 360° LED light distribution
• Plug & Play installation
• Non-polarity design
• Energy-efficient operation
• Over 40,000-hour lifespan
• Supplied as a pair

Designed for Dual-Intensity Amber Lighting

The W21/5W (7443) is a dual-intensity wedge bulb capable of operating at two different brightness levels.

Depending on the vehicle, the lower output may be used as a parking or position light, whilst the brighter output is used for the indicator or signalling function.

Please note that application varies between manufacturers. Always confirm your original bulb type and function before ordering.

Powerful 1100LM Amber Output

The high-output circuit produces up to 1100 lumens of bright amber light, providing excellent visibility during daylight, poor weather and night driving.

The amber colour is generated directly by the LED chips, producing a rich and consistent output without relying on coloured glass or bulb coatings.

Instant LED Response

LED technology reaches full brightness almost instantly, providing a sharper and more responsive signal than conventional filament bulbs.

The rapid illumination helps improve signalling visibility while giving your vehicle a cleaner, more modern appearance.

Intelligent Super Canbus Technology

Each bulb incorporates intelligent Super Canbus electronics designed to minimise dashboard bulb warnings, flickering and rapid flashing on many modern vehicles.

Whilst compatible with most Canbus systems, some vehicles with particularly sensitive bulb-monitoring systems may still require additional load resistors, Canbus decoders or an LED-compatible flasher relay.

Advanced Active Cooling

A built-in high-speed turbine cooling fan continuously removes heat from the LED chips whilst the aviation-grade aluminium body rapidly dissipates heat to maintain stable performance and long service life.

360° LED Light Distribution

The multi-sided LED chip arrangement closely replicates the position of the original filament, helping produce an even light pattern throughout the reflector and excellent visibility from multiple viewing angles.

Ideal Applications

• Dual-Function Indicator Lamps
• Indicator & Parking Light Combinations
• Front Combination Lamps
• Rear Combination Lamps
• Selected DRL/Indicator Combinations
• Any compatible application requiring a W21/5W (7443) bulb
• Any compatible application requiring a W3x16q wedge base

Technical Specifications

W21/5W (7443) Compatibility

W21/5W and 7443 are commonly used references for the same dual-intensity automotive wedge bulb.

These bulbs use a W3x16q wedge base and feature dual electrical circuits for separate lighting functions.

Do not confuse them with the single-intensity W21W (7440). Although they appear similar externally, they are designed for different electrical functions and are not always interchangeable.

Please note: W21/5W (7443) amber bulbs are used on selected vehicles only. Always check your original bulb type, base and lighting function before ordering.

Package Contents

• 2 × Super Canbus W21/5W (7443) Amber LED Bulbs
• Retail Presentation Box

Important Information

• Please check your existing bulb type before ordering.
• Designed for W21/5W (7443) W3x16q wedge applications.
• Application varies by vehicle manufacturer.
• Canbus compatible with most vehicles.
• Some vehicles may still require additional resistors, decoders or an LED flasher relay.
• Suitable for 12V vehicle electrical systems.
• Please ensure sufficient clearance for the fan-cooled bulb body.
• Road-use legality depends on the vehicle and intended application.

Why Buy from HIDS-DIRECT?

HIDS-DIRECT specialises in premium automotive lighting products trusted by thousands of motorists throughout the UK.

Every product is carefully selected for performance, reliability and ease of installation, giving you complete confidence when upgrading your vehicle lighting.

Frequently Asked Questions

Will these W21/5W amber LED bulbs fit my vehicle?

These bulbs are designed for vehicles that use a W21/5W (7443) bulb with a W3x16q wedge base. Please remove and inspect your existing bulb, consult your vehicle handbook or compare the bulb base before ordering.

Are W21/5W and 7443 the same bulb type?

Yes. W21/5W and 7443 are commonly used references for the same dual-intensity automotive wedge bulb. Both use a W3x16q wedge fitting with separate high and low brightness circuits.

What is the difference between W21/5W and W21W?

W21/5W (7443) is a dual-intensity bulb with separate low and high brightness outputs. W21W (7440) is a single-intensity bulb with only one brightness level. Although they appear similar, they perform different lighting functions and are not always interchangeable.

What are these amber LED bulbs used for?

These bulbs are designed for compatible dual-function lighting systems that require an amber W21/5W (7443) bulb. Depending on the vehicle, they may be used for indicator and parking light combinations or other dual-intensity amber applications. Always check your vehicle's original bulb specification before ordering.

What colour light do these bulbs produce?

These bulbs produce a strong, pure amber LED light. The amber colour is generated directly by the LED chips, providing a rich and consistent output without relying on coloured glass.

How bright are these bulbs?

The high-output function produces up to 1100 lumens, while the lower output produces approximately 110 lumens, replicating the dual-intensity operation of the original bulb.

Can these bulbs be used behind a clear lens?

Yes, provided the lamp unit requires an amber W21/5W (7443) bulb. The LED chips generate amber light directly, making them suitable for compatible clear-lens lamp units.

Can these bulbs be used behind an amber lens?

Yes, provided the original bulb type and electrical specification are correct. The dedicated amber LED output produces a bright and consistent colour through compatible amber lenses.

Are these bulbs Canbus compatible?

Yes. They include built-in Super Canbus electronics designed to reduce dashboard bulb warnings, flickering and rapid flashing on many modern vehicles. Some particularly sensitive vehicles may still require additional load resistors, Canbus decoders or an LED-compatible flasher relay.

Are these bulbs polarity sensitive?

No. They feature 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 incorporates a built-in high-speed turbine cooling fan that helps dissipate heat from the LED chips, maintaining stable brightness and extending service life.

Do I need to modify the wiring?

No. These bulbs are designed as a direct Plug & Play replacement for compatible W21/5W (7443) sockets. Some vehicles may require additional load resistors or an LED-compatible flasher relay depending on the indicator monitoring system.

How many bulbs are supplied?

This product is supplied as a pack of two W21/5W (7443) amber LED bulbs.

Are these amber LED bulbs road legal?

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