Knowledge base
Vehicle lighting
With the TRALERT® knowledge base, you’ll always be up to date. Whether you’re looking for information or regulations on work lights, trailer lighting, lorry lighting or safety signalling. Our lighting experts write articles on regulations, new products and useful tips.
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- Regulations & testingECE regulations, ADR, certification marks and what is required by law.59 articles
- Connection & cablingConnectors, wiring diagrams, cables and mounting.16 articles
- Lighting & visibilityWork lights, light images, flashing beacons and marking lights.30 articles
- Solving interferencesFlashing, CAN-bus, moisture and radio interference.7 articles
- Technology & materialsIP values, LED technology, lenses and materials.8 articles
New in the knowledge base
22 September 2026Trends & innovations for 24 Volt trailer manufacturing 2026
22 September 2026What lighting requirements apply to mobile work vehicles (category U)?
21 September 2026Practical tips for a 24V vehicle lighting system
21 September 2026Three ways to reduce trailer lighting installation time by 40%
Most read
- What IP value is required for vehicle lighting?
- Interference with truck and trailer lighting: diagnosis and solutions
- UN ECE standards and legislation: for vehicle lighting
- Connecting trailer lighting: how does it work?
- Regulations on lighting for trucks and semi-trailers in Europe
- HGV dimensions and weight: UK & European rules 2026
All articles
Regulations & testing 59
- ArticleWhat lighting requirements apply to mobile work vehicles (category U)?All vehicles
- ArticleWhich ECE Regulation does my vehicle fall under?All vehicles
- ArticleLighting in tunnels: what are the requirements for trucks and work vehicles?Trucks
- ArticleCISPR 25 Classes 1 to 5: What does this EMC standard mean for vehicle lighting?All vehicles
- ArticleSide markings on a semi-trailer: which regulations apply here?Semi-trailer
- ArticleRegulations on side-marker lights for semi-trailersSemi-trailer
- ArticleOversized loads in Germany: maximum lengths and lighting requirementsTrucks · Semi-trailers
- ArticleInstallation instructions for trailer lighting in accordance with ECE R48Trailer
- ArticleMarker lights with indicator function for long vehicles in Germany (2026)Trucks · Semi-trailers
- ArticleTrailer lighting regulations 2026: UK, EU & UNECE guideTrailer
- ArticleWhat are the regulations for side marker lights on trucks?Trucks
- ArticleThe regulations governing LED lightbar on trucks explainedTrucks
- ArticleThe difference between ECE R48 and R148 explainedAll vehicles
- ArticleEverything you need to know about amber lighting on trailersTrailer
- ArticleInspection of trailers with regard to lightingTrailer
- ArticleWhen are side marker lights compulsory on a trailer?Trailer
- ArticleWhat are the requirements for amber lighting on 24V trailers?Trucks · Semi-trailers
- ArticleEU type approval vehicle lighting: what you need to knowTrucks · Semi-trailers
- ArticleUN ECE standards and legislation: for vehicle lightingAll vehicles
- ArticleHow about amber (yellow) lighting on trucksTrucks · Semi-trailers
- ArticleRegulations on lighting for trucks and semi-trailers in EuropeTrucks · Semi-trailers
- ArticleWhy ECE certification does not automatically mean that you can also carry itAll vehicles
- ArticleVehicle categories O & N explained: from vans to heavy semi-trailersAll vehicles
- ArticleHere’s what you need to know about side markings on semi-trailers: mounting & regulationsSemi-trailer
- ArticleAll about side marking on trucksTrucks · Semi-trailers
- ArticleCertified lighting for vehicles: what about it?Trucks · Semi-trailers
- ArticleWhat about position lights in EuropeTrucks · Commercial vehicles
- ArticleWhen can you use amber beacons?Trucks · Commercial vehicles · Agricultural & construction machinery
- ArticleMarker lights with indicator function on small trailers: regulations, tips and wiring diagramsTrailer
- ArticleSecond number plate position mandatory for heavy trailers and semi-trailers from July 2026Semi-trailer · Trailer
- ArticleImplementing regulation (EU) 2024/883: what does it mean for trucks?Trucks
- ArticleImplementing regulation (EU) 2024/883: impact on semi-trailer lightingSemi-trailer
- ArticleRegulations on trailer side markings: positioning, distances and ECE requirementsTrailer
- ArticleTrailer Lighting: The Complete Guide for Professionals: Surface Mounting, Regulations and InstallationTrailer
- ArticleTrailer marker lights: types, regulations and tipsTrailer
- ArticleADR Lighting regulations 2026 | essential requirements and installation checklistTrucks
- ArticleRules for a beacon bar and flash bar on public roadsCommercial vehicles
- ArticleHGV dimensions and weight: UK & European rules 2026Trucks
- ArticleSafety signs on vehicles: rules, classes and mountingTrucks · Commercial vehicles · Agricultural & construction machinery
- ArticleAre you allowed to have blue flashing lights?All vehicles
- ArticleFitting instructions for dual number plate positions (O3 and O4 trailers)Semi-trailer · Trailer
- ArticleCOC damaged by a double number plate: is this the time to review your lighting?Semi-trailer
- ArticleAdjusting the COC due to the double number plate: how to get the most out of itSemi-trailer
- ArticleThe 1000 points regulation ADRTrucks
- Articletractor registration requirement: what are the rulesAgricultural & construction machinery
- ArticleADR lighting for AT vehicles: requirements and suitable lightingTrucks
- ArticleADR lighting for EX/II & EX/III vehicles: requirements and suitable lightingTrucks
- ArticleADR lighting for night transport and route duty: requirements and practical tipsTrucks
- ArticleADR lighting for FL vehicles: requirements and suitable lightingTrucks
- ArticleWhat lighting is required on a two-axle trailer?Trailer
- ArticleLegislation and number plate lightingAll vehicles
- ArticleIs a rear fog light compulsory on a trailer?Trailer
- ArticleLighting in heavy transport: regulations and practical tipsTrucks · Semi-trailers
- ArticleTractor on public roads, what rules apply?Agricultural & construction machinery
- ArticleCan you have green beacons?Trucks · Commercial vehicles · Agricultural & construction machinery
- ArticleLED rear lights for trailers? Don’t forget the triangle reflector!Trailer
- ArticleWhat is the maximum width of a trailer?Trailer
- ArticleWhat is a ce mark? and what should you look out for?All vehicles
- ArticleADR work lights: essential requirements, approvals and application for hazardous substancesTrucks
Connections & cabling 16
- ArticleTrends & innovations for 24 Volt trailer manufacturing 2026Semi-trailer
- ArticlePractical tips for a 24V vehicle lighting systemTrucks · Semi-trailers
- ArticleThree ways to reduce trailer lighting installation time by 40%Semi-trailer
- ArticlePutting together a trailer lighting kit: a comprehensive guide for professionalsTrailer
- ArticleConnecting 24V semi-trailer lighting: practical tipsSemi-trailer
- ArticleMale vs female connector: how can you tell the difference?All vehicles
- ArticleCalculating cable gauge for vehicle lighting: how to make the right choiceAll vehicles
- ArticleConnecting trailer lighting: how does it work?Trailer
- ArticleStaff shortage in bodybuilding: why efficiency is becoming more important than everSemi-trailer
- ArticlePersistent shortage of skilled workers in bodybuildingSemi-trailer
- ArticleHow much time does it really take you to install semi-trailer lighting?Semi-trailer
- ArticleWhy manual stripping and soldering of trailer lights is out of dateSemi-trailer
- ArticleConnecting ADR lighting: points of attention and practical tipsTrucks
- ArticleConnecting additional reverse work lights? Read how to avoid interference (12V system)Trailer
- ArticleConnecting work lights to a trailer for more light whilst workingTrailer
- ArticleWhat to pay attention to when mounting your work lightsAll vehicles
Light & visibility 30
- ArticleSignal Road Projection: signalling visible on the road surfaceTrucks · Semi-trailers
- ArticleExcavator lighting: how do you ensure optimum work light?Agricultural & construction machinery
- ArticleLED Work lights: this is why operational certainties are more important than the purchase priceAll vehicles
- ArticleTrailer reverse lights: points to considerTrailer
- ArticleTrailer brake lights: types, mounting and key considerations for professionalsTrailer
- ArticleWhat lighting is fitted to a trailer? Overview + functionsTrailer
- ArticleWhich LED work light should you choose for your vehicle? Practical selection aid for professionalsAll vehicles
- ArticleCircuLux & Omnino Air-T: the latest beacor bars with warning light functionsTrucks · Commercial vehicles · Agricultural & construction machinery
- ArticleChoosing the right LED bar - TRALERT® selection guideTrucks · Commercial vehicles · Agricultural & construction machinery
- ArticleRound, square or rectangular LED rear lights: which shape suits your truck, semi-trailer or trailer ?Truck · Semi-trailer · Trailer
- ArticleLED warning lights in the grill of a work bus: tips and points of attentionCommercial vehicles
- ArticleCommercial vehicle lighting: trends, applications and tipsCommercial vehicles
- ArticleLED work lights: selecting the right light image (beam pattern)All vehicles
- ArticleKingpoint Trailer light | The dynamic semi-trailertSemi-trailer
- ArticleInterior lighting and cargo space lighting: trends, tips & opportunitiesTrucks · Commercial vehicles
- ArticleBlue light on forklifts, what does this blue light do?All vehicles
- ArticleBrake light and rear light, what's the difference?All vehicles
- ArticleSafe roadside workAll vehicles
- ArticleLED rear lights with dynamic indicator light for trailers or semi-trailers? Take a look at these 10 models!Semi-trailer · Trailer
- Article7 ways to enable safe forklift operationAll vehicles
- ArticleLED driving lights and LED bars with integrated position lights, trend or future?Trucks · Commercial vehicles · Agricultural & construction machinery
- ArticleLow sun: how to avoid glare on the roadAll vehicles
- ArticleLED rear lights for trailers. Why choose LED?Trailer
- ArticleLED work light agriculture: LED work lights for your tractor or tractorAgricultural & construction machinery
- ArticleLED work light with magnet? The pros and cons!Trucks · Commercial vehicles · Agricultural & construction machinery
- ArticleDriving lights from TRALERT®. check out the models!Trucks
- ArticleThe 5 best LED rear lights with dynamic indicator lightSemi-trailer · Trailer
- ArticleWhy do we call round LED rear lights 'hamburger lights'?All vehicles
- ArticleCheck out these functional LED interior lights from TRALERT®!Trucks · Commercial vehicles
- ArticleLED rear lights in winter weather. What should you pay attention to?All vehicles
Troubleshooting 7
- ArticleIs your LED lighting interfering with the radio? Cause and solution (EMC, ECE R10)All vehicles
- ArticleWhy are my LED lighting units flashing? Causes and solutions for CAN-bus interferenceAll vehicles
- ArticleInterference with truck and trailer lighting: diagnosis and solutionsTrucks · Semi-trailers
- ArticleTrailer lighting not working: causes and solutionsTrailer
- ArticleWaterproof trailer lighting: preventing moisture ingress and interferenceTrailer
- ArticleCanbus-proof LED lighting: what does this mean in practice?All vehicles
- ArticleDamage and interference with semi-trailer lighting: why repairs often take longer than expectedSemi-trailer
Technology & materials 8
- ArticleWhat IP value is required for vehicle lighting?All vehicles
- ArticleHow do you recognise a high-quality LED work light?All vehicles
- ArticleWatts vs lumen: what is the differenceAll vehicles
- ArticleWaterproof LED side marker lightsAll vehicles
- ArticleWhat does 'watt' stand for and why is it of value in work lights?All vehicles
- ArticleHalogen and LED: what are the differences?All vehicles
- ArticleHow does LED lighting work?All vehicles
- ArticleThe differences between LED work lights and Halogen work lightsAll vehicles
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Lighting terms
From ADR to IP69K: 190 vehicle lighting terms explained in a short manner.
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