Trailer Light Boards

Subcategory Breakdown

Standard Trailer Light Boards

Affordable, entry-level boards with all necessary lights and a 7-pin plug. Ideal for garden trailers and general towing.

Heavy-Duty Trailer Boards

Built with reinforced casings, sealed lights, and thick cables — suited to commercial trailers or farm use.

LED Trailer Boards

Energy-efficient and longer lasting, ideal for modern vehicles or those regularly driving at night.

Trailer Boards with Number Plate Holder

Feature a flat surface or clips for easy number plate attachment, complying with road visibility laws.

13-Pin Plug Trailer Boards

Compatible with newer vehicles and caravans — provide full lighting and auxiliary functions.

Expert Tips

• Match the plug type on your trailer board to your vehicle (most UK cars use 7-pin, newer models may use 13-pin)

• Use extension leads if your trailer or load is long — check cable length before purchase

• For bike racks, ensure the board is wide enough to be visible beyond the rack’s edges

• Always check the board’s lights are working before each journey

• Clean lenses and connections regularly to avoid poor visibility or corrosion

Common Mistakes to Avoid

• ❌ Using the wrong plug type — 7-pin plugs won’t fit 13-pin sockets without an adapter

• ❌ Forgetting to fit a number plate — required if your original plate is obscured

• ❌ Using a light board that’s too short for your trailer width

• ❌ Leaving boards unsecured — they can fall or bounce while driving

• ❌ Ignoring damaged cables — exposed wires can lead to electrical faults

Bestselling Trailer Light Boards

1. Maypole 4ft Trailer Board with 7-Pin Plug – Classic, road-legal, and ideal for most trailers

2. Ring LED Trailer Light Board (5ft) – Durable LED version with long-lasting bulbs and bright output

3. Streetwize 3ft Compact Trailer Board – Lightweight and perfect for smaller trailers or bike carriers

4. Witter Heavy-Duty Trailer Board with 8m Cable – Designed for large trailers, boats or commercial towing

5. MP Automotive 13-Pin Trailer Light Board – Compatible with modern vehicles and caravans

6. Thule Light Board for Bike Racks – Tailored to fit behind rear-mounted cycle carriers

7. SAS Trailer Board with Plate Holder and LED Lights – Combines visibility, compliance, and long cable reach

Trailer Light Boards – FAQs

1. What is a trailer light board used for?
A trailer light board replicates your car’s rear lights and number plate when they’re obscured by a trailer or load, ensuring legal and safe towing.

2. Is a trailer light board a legal requirement in the UK?
Yes — if your rear lights or number plate are blocked, a working light board is mandatory under UK road laws.

3. What’s the difference between 7-pin and 13-pin plugs?
A 7-pin plug provides all necessary lighting signals (brakes, indicators, tail lights). A 13-pin plug includes extra features like reverse lights and battery charge circuits for caravans.

4. How do I attach a trailer light board?
Most boards include mounting holes, straps, or clips. Ensure it’s secure and visible, and connect the plug to your vehicle’s socket.

5. How long should the cable be?
It depends on trailer size. For small trailers, 4–5 metres is usually enough. For longer trailers or boats, consider 8 metres or more.

6. Can I use LED trailer boards with any vehicle?
Generally yes, but older vehicles may need a resistor or LED-compatible relay to prevent flickering or bulb failure warnings.

7. Do I need to attach a separate number plate?
Yes — if your original plate is obscured, you must fit a duplicate to the trailer board.

8. Can I use a trailer board with a bike rack?
Absolutely. Choose a compact board with secure mounting and the correct plug to ensure full compliance.

9. What should I do if one of the lights isn’t working?
Check the bulb, wiring, and plug connection. Clean the contacts and replace blown bulbs immediately.

10. Are trailer boards waterproof?
Most are water-resistant, but not fully submersible. For boat trailers, choose sealed LED models with reinforced wiring.

Final Thoughts

Trailer light boards are a vital part of safe and legal towing. Whether you’re moving a trailer, transporting bikes, or towing for work, a quality light board ensures full visibility and compliance with UK law. Our wide range includes compact, heavy-duty, and LED options with plug types and cable lengths to suit every vehicle and trailer setup. Trusted by drivers since 1988, we only stock trailer boards built for the road ahead.

Looking for the perfect Christmas Gift? Check out our Christmas Products

Hiking or Walking this Winter, here are our Outdoor Clothing Products

Amazon Associate Disclosure
As an Amazon Associate, the Yorkshire Outdoor Activity Park may earn a small commission from qualifying purchases. Please know that this does not affect reviews,  content, or this site's opinions of products, services, manufacturers, partners, or merchants. The mission of the Yorkshire Outdoor Activity Park is to provide the best functionality for this site's users, regardless of any potential affiliate commissions.