Low beam headlights
- Maximum luminous flux (in lumens) : 3400 lumens
- Max power (W) / bulb : 35 Watts
- Standards : E4 - ECE R99 - RoHS
Over 50 LED bulbs and kits for your ALPINA B4 Convertible (F33) lighting: low beam, high beam, fog lights, turn signals, license plate, interior… Pure, powerful white light, easy installation: choose a light type below and let us guide you.

These products are suitable for your ALPINA B4 Convertible.
However, certain technical specifications may affect compatibility. In some cases, adding modules or adapters will be essential.
The Alpina B4 Convertible (F33), produced since 2014, is the convertible version based on the BMW 4 Series F33. Also known as the B4 Bi-Turbo Cabriolet or B4 Bi-Turbo Convertible, it combines the pleasure of open-top driving with the performance of Alpina’s twin-turbo engine.
This vehicle is equipped with original bi-xenon headlights. Both the low beams and the high beams use a D1S base. The front fog lights operate in H8.
At the rear, the turn signals are P21W, the rear fog light is H21W and the brake lights are H21W. The trunk lighting uses C10W and the glove box lighting W5W.
Based on the BMW F33 platform, the Alpina B4 Convertible features an advanced CANbus system. It is essential to choose CANbus-compatible LED kits to ensure operation without an error message on the dashboard.
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The Alpina B4 Convertible (F33) is equipped with original bi-xenon D1S headlights for the low beams. A replacement D1S LED kit installs directly in place of the xenon bulb, without modification to the headlight assembly.
Yes, the Alpina B4 Convertible (F33) is based on the BMW F33 platform, equipped with an advanced multiplexed CANbus system. It is essential to choose CANbus-compatible LED kits to avoid error messages or flickering.
The high beams of the Alpina B4 Convertible (F33) also use a D1S base in the bi-xenon system. A D1S LED kit offers whiter lighting and better range for night driving.
Yes, D1S LED kits are specially designed to replace the xenon bulbs in your B4 Convertible. They offer modern lighting and a longer lifespan, while retaining the original headlight assembly.
Yes, Philips brand LED bulbs are road-approved and legal in France. They are a reliable solution to modernize the lighting of your Alpina B4 Convertible while complying with regulations.
Immerse yourself in the world of AGM VISION to discover our selection of bulbs specially designed for your ALPINA. By choosing the perfectly suited light model for your B4 Convertible, you will benefit from custom LED lighting, designed to integrate seamlessly with your vehicle. At AGM VISION, we understand the importance of optimal lighting for the safety and aesthetics of your car. That’s why we offer LED lighting solutions that combine performance, durability, and compatibility, ensuring an enhanced and secure driving experience. Choose excellence with AGM VISION LED bulbs, and elevate the lighting of your ALPINA B4 Convertible to a new level of perfection ✨