HORPOL blog
The HORPOL blog is a source of expert knowledge on vehicle lighting. We explain how to choose the right lamps, which solutions work best in specific conditions, and which products are most suitable for different types of vehicles.
8 Oct 2026
Refrigerated and insulated vehicle lighting – how to choose lamps resistant to condensation and extreme temperatures?
When the cargo compartment doors are opened frequently, rapid air exchange occurs – warm, humid air from outside meets the sub-zero temperatures inside the refrigerated compartment. This leads to the rapid condensation of water vapour on the surface of lamp lenses and housings. In lighting fixtures without adequate protection, this can result in short circuits and damage to electronic components. When choosing lighting for refrigerated vehicles, it is essential to opt for hermetically sealed LED lamps designed to ensure reliable, trouble-free operation across an extreme temperature range of -30°C to +50°C.
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2 Nov 2026
Sand and salt spreader lighting
A salt and sand spreader is a specialised piece of municipal equipment that operates in an extremely harsh physicochemical environment during winter road maintenance. If you are responsible for a winter road maintenance fleet, you know perfectly well that heavy snowfall, sub-zero temperatures and pervasive salt brine put every electrical component to the ultimate test. Lighting installed on this type of equipment cannot be a matter of chance or a budget-driven compromise. Aggressive salt spray discharged by the spreading disc can quickly penetrate inadequately sealed housings, causing short circuits and costly equipment downtime in the middle of a snowstorm. By investing in uncompromising LED lighting systems, you can ensure uninterrupted operation while helping to protect the safety of both the operator and other road users.
8 Oct 2026
Refrigerated and insulated vehicle lighting – how to choose lamps resistant to condensation and extreme temperatures?
When the cargo compartment doors are opened frequently, rapid air exchange occurs – warm, humid air from outside meets the sub-zero temperatures inside the refrigerated compartment. This leads to the rapid condensation of water vapour on the surface of lamp lenses and housings. In lighting fixtures without adequate protection, this can result in short circuits and damage to electronic components. When choosing lighting for refrigerated vehicles, it is essential to opt for hermetically sealed LED lamps designed to ensure reliable, trouble-free operation across an extreme temperature range of -30°C to +50°C.
8 Oct 2026
How to properly equip warehouse vehicles with lights? Mandatory and optional lighting on forklift trucks
Proper lighting and signaling on forklifts and other warehouse vehicles are essential for ensuring workplace safety in logistics and production facilities. Correctly selected forklift lights help prevent collisions with pedestrians, warn of approaching equipment around blind corners and behind shelving, and improve visibility for operators themselves. Essential equipment includes work lights, warning beacons, and spot projection systems such as Blue Spot and Red Spot. Implementing reliable lighting systems significantly improves occupational health and safety (OHS) and helps prevent costly cargo damage.
19 Aug 2026
How to choose the right license plate lights for a trailer and car transporter?
When travelling on public roads with a vehicle combination, transport operators must ensure that identification elements remain clearly visible, with a dedicated license plate light playing a key role. Proper vehicle identification after dark and in difficult weather conditions is not only a legal requirement but also a fundamental element of road safety.
In this guide, you’ll learn how to properly select license plate light fittings for transport equipment and discover the ECE homologation requirements.
19 Aug 2026
Transporting oversized loads – how to ensure proper visibility?
Transporting industrial machinery, oversized structures or construction equipment requires meticulous planning and the highest safety standards. Moving loads that exceed standard road limits calls for clear and effective marking of the vehicle combination, which is essential for protecting all road users. At HORPOL, we have been designing and manufacturing vehicle lighting since 1979, drawing on our in-house design department and photometric laboratory equipped with goniophotometers and integrating spheres. Our engineering expertise enables us to deliver solutions that clearly define the outer dimensions of a vehicle combination and help reduce the risk of collisions after dark. In this guide, you will learn how to select the right lighting and signalling solutions and discover the key principles for properly marking an abnormal load.
19 Aug 2026
Discreet by day, distinctive by night – how does photometry work in GRAPHITE dark-lens lamps?
Modern commercial vehicle design calls for solutions that combine aesthetics with uncompromising road safety. The GRAPHITE series meets these needs by using dark-tinted lenses that create a seamless visual line with the vehicle body during the day, while emitting a distinctive beam of light after dark. At HORPOL, we have been designing and manufacturing advanced vehicle lighting since 1979, drawing on our own engineering capabilities. In this article, we explain how dark-tinted automotive lamps affect vehicle visibility and why properly designed photometry ensures reliable performance in all conditions.
3 Aug 2026
How to choose ADR lamps for a tanker? Key standards and requirements for the transport of dangerous goods
Choosing the right components for vehicles transporting dangerous goods requires strict compliance with rigorous safety regulations. Professional ADR lamps are specially designed lighting products that help prevent electrical sparks and excessive housing temperatures in potentially explosive atmospheres. When transporting fuels, gases or liquid chemicals, even the smallest electrical short circuit can lead to catastrophic consequences. For this reason, ADR-compliant lighting must feature complete sealing, the highest ingress protection ratings of IP68 or IP69K, and certified resistance to chemicals. By choosing dedicated lamps, you are investing in reliable fleet operation and full compliance with the international European agreement governing the road transport of dangerous goods.
10 Jul 2026
ECE Homologation – what is it and why is it not worth buying lamps without certification?
Sooner or later, every driver faces the need to replace their vehicle’s lighting. The wide range of products available in online stores, along with tempting low-cost offers on auction platforms, can be overwhelming. However, a low price often comes with the lack of the required markings and certifications. One key term that every vehicle owner should know is ECE homologation.
In this article, you will learn exactly what this certification means, why its absence can cost you dearly, and how to avoid being fooled by “great deals” that may compromise road safety.
12 Jun 2026
Tractor lights – how can modern LED lighting improve work efficiency and safety?
Tractor lights have a direct impact on work pace, maneuvering precision, and the safety of both the operator and the surrounding environment. Proper work lighting determines whether tasks can be carried out safely after dark, in fog, or during rain. Tractor work lights should provide excellent visibility in all conditions, day and night, while also fulfilling signaling functions on public roads. Today, LED technology has become the standard in tractor lighting systems.
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