Vehicle lighting guides: trailers, telehandlers and farm vehicles
Vehicle lighting guides cover the machines that work alongside a tractor: trailers, telehandlers, sprayers, combines, pickups, quads and UTVs. Each vehicle type has its own lighting requirement on the road and its own working lights in the field, and the section holds 12 guides that set out both.
15 guides
- Vehicle Lighting
Reverse Lights Not Working: Reversing Light Faults and MOT
Reverse lights not working? Check the bulb, fuse, earth and reversing light switch. Plus MOT rules and when reversing lights became compulsory...
- Vehicle Lighting
Rear Fog Light Symbol: Front and Rear Fog Light Symbols Explained
The rear fog light symbol is an amber lamp facing right with straight lines crossed by a wavy line. How to tell...
- Vehicle Lighting
Position Lamp Not Working: MOT Fail Meaning and Fix
Position lamp not working on your MOT? Nearside is passenger side, offside driver side. Why it fails, how to change the W5W...
- Vehicle Lighting
Flasher Lamps and Indicators: How They Work and Common Faults
A flasher lamp is the amber direction indicator fitted to the front, side, or rear of a road-going vehicle that flashes between...
- Vehicle Lighting
Licence Plate Lights: Regulations, Replacement, and LED Upgrades
What a Licence Plate Light Does A licence plate light illuminates the rear registration plate so that it can be read at...
- Vehicle Lighting
End Outline Marker Lamps: What They Are and When You Need Them
What an End Outline Marker Lamp Is An end outline marker lamp is a small fixed lamp fitted near the outer edge...
- Vehicle Lighting
End Outline Marker Lamps: What They Are and When You Need Them
What an End Outline Marker Lamp Is An end outline marker lamp is a small fixed lamp fitted near the outer edge...
- Vehicle Lighting
Hazard Warning Flashers: How They Work and UK Legal Requirements
A hazard warning flasher is the amber indicator system on a road-going vehicle that flashes all four corners at the same time...
- Vehicle Lighting
LED Rear Lamp Clusters: Benefits of Upgrading from Bulb to LED
An LED rear lamp cluster is a single sealed assembly that combines multiple rear lighting functions (stop, tail, indicator, reverse, fog, and...
- Vehicle Lighting
Daytime Running Lights UK Law: Colour, Rules and MOT
Daytime running lights UK law: DRLs must be white and RL approved, so yellow DRLs are not legal. Which vehicles need them,...
- Vehicle Lighting
Rear Brake Light Bulbs: P21W, P21/5W, Fitting and UK Law
Rear brake light bulbs explained: P21W 382 vs P21/5W 380, how to tell which you need, LED options, how to replace a...
- Vehicle Lighting
Position Lamps: Front and Rear Sidelights Explained
A position lamp is the sidelight on a car: white at the front, red at the rear. Front vs rear, nearside vs...
Trailer and implement lighting
A trailer needs tail, brake and indicator lamps, a rear fog lamp, red rear reflectors, a lit number plate and, above 1.6 metres wide, front position lamps; long trailers add amber side marker lamps every 3 metres. Implements wider than the tractor need marker lamps and reflectors at the extremities. The guides give the positions and the LED rear lights and marker lights that meet them.
Telehandlers, quads and other vehicles
Telehandlers and loaders run 12V or 24V systems and carry work lights on the boom and cab, plus a beacon for road use. Quads and UTVs run 12V with small alternators, so LED lamps are the practical upgrade. The guides cover each vehicle's electrical system, the lamps that suit it and the rules that apply when it uses the road.








