H4 Heavy Duty Expert bulbs
H4 Heavy Duty Expert bulbs
For maximum visibility on every journey: high light output, extremely vibration resistant and long lifetime – ideal for demanding applications in the commercial vehicle sector.
Consistent performance even with the toughest vibrations
The light quality remains stable even under extreme conditions. The bulbs are specially designed for the rigorous everyday demands of the commercial vehicle sector, offer excellent vibration resistance and are designed to minimise the risk of failure. This ensures optimum visibility at all times, whether on uneven roadworks or long-distance journeys.
Wide product range for every commercial vehicle requirement
The Heavy Duty Expert H4 bulbs belong to an extensive range of bulbs that offer different luminous intensities, base plate types and voltages. They cover a wide variety of vehicle types and areas of application – from lorries and agricultural machinery to construction vehicles. This means that every user can find exactly the right lighting solution for their specific requirements.
For maximum safety in road traffic
Robust bulbs ensure consistently high visibility day and night. Optimised light distribution ensures that the road is effectively illuminated – and oncoming traffic is not dazzled. This increases the safety of drivers and other road users
View light performance in ELIVER
The right light for every application – find the right headlamp in ELIVER now.
Suitable advice topics
Comparison between H4 and H7: Differences between headlamp bulbs
Discover the advantages and disadvantages of H4 and H7 lamps.
Changing the low beam: Here's how it’s done
Your low beam has dropped out? Don't worry! With the help of our instructions, you will be able to change the bulb in no time at all – whether halogen or xenon.
Recutting wipers: Does it make sense?
Recutting windshield wipers sounds practical – but it's risky. Find out here why it's better to replace them.