P21W BA15S 1156 LED Bulb CANBUS MAGALL FAN-CAN White Bright DRL Reverse

P21W BA15S 1156 LED BULB CANBUS FAN-CAN MAGALL WHITE BRIGHT DRL REVERSE

✅Unique LED bulb with 7 Ω resistance

✅For use wherever most LED bulbs cause problems.

VAG group cars (AUDI, VOLKSWAGEN, SKODA, SEAT) OPEL, VOLVO and all others

✅ Long service life thanks to an active cooling system

✅ Base type: BA15S/1156/P21W (single filament, i.e. one bottom contact, symmetrical side pins at the same height, + pole on the bottom contact, − pole on the housing)

Price is for 1 bulb

⚙️Technical specifications⚙️

• Base type: BA15S/1156/P21W
• Brightness: 1200 lumens
• Voltage: 12V
• Power: 30W
• Resistance: 7Ω
• Current: 2 A
• Dimensions: 52 mm x 20.5 mm
• 2016 SMD LED chip
• Colour temperature: 6000K (white light)
• Service life: 5 YEARS or 100,000 km
• Protection rating: IP65 – water and dust resistant
• Material: aviation-grade aluminium – efficient heat dissipation
• Operating temperature range: -40°C to 80°C
• 360° system – full light spread with no dead spots
• CANBUS – very high compatibility

For comparison, the specifications of standard P21W bulbs

• Luminous flux: 400LM
• Power: 21 W
• Current: 1.5 A
• Resistance: 9.3Ω

⭐Linear IC (CANBUS emulator)

Our FAN-CAN series bulbs contain an electronic emulator and a capacitor that work with most CANBUS diagnostic systems used in vehicles. This helps avoid "bulb out" warnings on the dashboard.

Real resistance 7Ω

We explain how CANBUS works at the end of this description

⭐COOLING SYSTEM with built-in fan⭐

✅The cooling system of the MAGALL FAN-CAN LED bulb features an advanced built-in fan that actively dissipates the heat generated by the LEDs. The fan runs at high speed to provide fast and effective cooling even during long use.❄️

✅Thanks to the fan, the bulb keeps a stable operating temperature however long it is on. Overheating, a common cause of LED bulb failure, is effectively reduced. The aviation-grade aluminium housing further supports cooling by improving heat conduction.❄️

✅Thanks to effective cooling, MAGALL FAN-CAN LED bulbs offer longer life and durability. The cooling system prevents heat damage, so these bulbs last longer and are more reliable, even under heavy use. You can be confident they will work without failure, keeping your driving safe and comfortable.❄️

⭐ EXCEPTIONAL BRIGHTNESS AND VISIBILITY⭐

✅360° system: the design provides even light in all directions, which matters both when reversing and when driving in daytime. No dead spots means the whole area around the vehicle is well lit.

✅Advanced 2016 SMD LED chip: modern LED technology guarantees high brightness and energy efficiency. The bulb uses less energy, reducing the load on the vehicle's electrical system.

✅1200 lumens – excellent visibility that significantly improves road safety, both day and night.

✅Aviation-grade aluminium: the high-quality housing material resists mechanical damage and dissipates heat better, improving stable operation in all conditions.

✅Base type: BA15S/1156/P21W – ideal as reverse light bulbs and daytime running lights.

⭐APPLICATIONS AND BENEFITS⭐

☝️Reverse light: thanks to its high brightness, the bulb works perfectly as a reverse light, fully lighting the area behind the vehicle. Manoeuvring and parking become much safer, especially at night or in poorly lit places.

☝️Daytime running light (DRL): intense white light (6000K) makes your vehicle more visible on the road, which significantly improves safety, especially in difficult weather. This light is more visible than standard halogen bulbs, so other road users will notice your vehicle more easily.

☝️Brake lights, reverse lights, turn signals

⭐ WATER RESISTANCE ⭐

☂️Full protection against moisture: with an IP65 rating, MAGALL FAN-CAN LED bulbs are fully resistant to rain, moisture and dust. Even in difficult weather such as downpours or mud, they work reliably and keep you safe on the road.

☂️Durability and longer life: the solid, sealed construction of MAGALL FAN-CAN LED bulbs effectively prevents corrosion and damage, extending their life. A durable solution for every situation.

☂️Safety in all conditions: by choosing MAGALL FAN-CAN LED bulbs with IP65 water resistance, you can be sure your lighting will work without failure whatever the weather. The ideal choice for drivers who value reliability and quality on every journey.

The photo above shows the different base types of MAGALL FAN-CAN LED bulbs. Choose the right model to ensure a perfect fit and avoid installation problems.

✅Important product information – benefits and safety rules

1. Operating temperature – modern and controlled Our LED bulbs reach a temperature of about 100°C during operation. This is a normal, fully controlled design feature that shows they are working correctly and efficiently.

2. Safety for your car – a key advantage over tradition Unlike our LEDs, traditional halogen car bulbs generate extreme heat. The temperature of their glass bulb reaches 200°C to as much as 250°C! Thanks to a much lower operating temperature, our LED bulbs are 100% safe for factory lamps and headlights. There is no risk of damage, clouding or melting, a common problem with overheating halogens.

3. Warning – your safety during installation Remember that even 100°C can cause burns. Always avoid touching the bulb while it is on and immediately after switching it off. Before fitting or removing it, wait a few moments to be sure it has cooled down completely.

⭐MAGALL LED Bulbs – Safety and Compliance with EU Standards⭐

MAGALL LED bulbs comply with the EMC Directive 2014/30/EU and have passed EN IEC 55015:2019+A11:2020 testing.

MAGALL bulbs are designed not to interfere with other electrical devices and are resistant to external electromagnetic interference. This means stable, trouble-free operation throughout their service life, adding to the convenience, safety and comfort of everyday use of MAGALL LED lighting.

MAGALL LED bulbs carry the CE mark and meet European Union requirements for safety, health and environmental protection. The CE mark shows that the products have been tested for safe use and meet the strict quality and technical standards required in the EU.

Are LED bulbs type-approved (homologated)?

All LED light sources available on the market were designed for headlights that meet the standards for halogen or conventional bulbs. The European Union has not yet adopted the comprehensive regulations needed to legalise LED retrofit light sources. When some sellers present information in their listings suggesting that LED bulbs are type-approved, this is intended to mislead customers into buying. Some of them even put an E… mark on the product to reinforce this impression. We do not use such practices.

In the European Union, automotive products must have UNECE certification to be used on public roads. Existing ECE certificates cover only halogen and xenon bulbs and LED light sources fitted as original equipment in new vehicles. However, there are no specific type-approval requirements or restrictions on using LED light sources on private roads, race tracks, etc. That is why leading manufacturers of automotive LED lighting mark their products "off-road use only" or "not for use on public roads".

Although the law has not changed, we believe our customers now know enough about LED light sources to make an informed choice and a satisfying purchase.

All our products comply with the EMC Directive 2014/30/EU – CE

and are tested to EN IEC 55015:2019+A11:2020 and EN 61547:2009

CANBUS – how it works and why it matters for LED bulbs

CAN BUS (Controller Area Network Bus) is a car's internal communication network that lets electronic modules (e.g. the BCM – Body Control Module) exchange data without extra wiring.

The computer does not check whether the bulb actually lights up – it measures the current draw and the circuit resistance.

• Test when the ignition is switched on: the computer sends a short pulse and checks whether the resistance falls within the so-called acceptance window, i.e. the permitted range of values.
• Continuous measurement while driving: in more advanced cars the BCM constantly monitors the current. If the LED bulb has different characteristics from a halogen (e.g. lower current draw), the system may treat this as a fault and display a "bulb out" message.

In practice, different cars have different tolerance ranges and CANBUS standards – they differ in data transfer speed, how the circuit is tested, and resistance and power draw requirements.

So saying that an LED bulb "has CANBUS" or "doesn't have CANBUS" is a simplification. It all depends on the tolerance of the vehicle's diagnostic system and the parameters of the LED bulb itself.

An illustrative example of how it works:

an H7 halogen bulb has a resistance of 3.6Ω

1.

• an example H7 LED bulb has a resistance of 10 Ω
• car A (acceptable range) 2.5–7 Ω – warning
• car B (acceptable range) 2–12 Ω – no warning
• car C (acceptable range) 3–5 Ω – warning

2.

• an example H7 LED bulb has a resistance of 6 Ω
• car A (acceptable range) 2.5–7 Ω – no warning
• car B (acceptable range) 2–12 Ω – no warning
• car C (acceptable range) 3–5 Ω – warning

3.

• an example H7 LED bulb has a resistance of 2.5 Ω
• car A (acceptable range) 2.5–7 Ω – no warning
• car B (acceptable range) 2–12 Ω – no warning
• car C (acceptable range) 3–5 Ω – warning (short circuit)

Now you know why the same bulbs work without warnings for some users while for others the on-board computer reports a problem.

In our listings we state the technical parameters precisely to make it easier to choose bulbs for a specific car model and avoid misunderstandings.