Do I Need Lights on a Small Trailer in the UK?

Sophia Jul 01, 2026

When towing a small trailer in the UK, one question that often arises is whether lights are necessary. The short answer is yes, you do need lights on a small trailer in the UK, and here's why.

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How to Fix Lights on a Trailer

Lights on a trailer serve two primary purposes: they improve your visibility to other road users and enhance your own visibility when towing at night or in poor weather conditions. In the UK, the rules regarding trailer lighting are clear and crucial for safety.

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Understanding UK Trailer Lighting Regulations

The UK's Road Vehicles Lighting Regulations 1989 outlines the lighting requirements for trailers. These regulations apply to all trailers with a gross weight of over 750kg, including small trailers.

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Unboxing Your Trailer Light Kit: What to Expect

According to these regulations, your trailer must be equipped with the following lights:

  • Two red rear position lights
  • Two red rear stop lights
  • Two amber rear direction indicators
  • Two white front position lights
  • Two white front direction indicators
  • A white number plate light
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Trailer Lighting Patterns

Trailer lights must flash in the same pattern as your towing vehicle's indicators. This helps other road users understand your intentions and react accordingly. The lighting pattern for left and right indicators is as follows:

Left indicator: Front and rear lights flash simultaneously. Rear lights continue to flash after the front lights have stopped.

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Right indicator: Front and rear lights flash simultaneously. Front lights continue to flash after the rear lights have stopped.

Trailer Lighting Placement

The lights must be positioned as follows:

Trailer Light Tester
Trailer Light Tester
  • Rear lights and indicators should be positioned at the same height and as close as possible to the rear of the trailer.
  • Front lights and indicators should be positioned at the same height and as close as possible to the front of the trailer.
  • The number plate light should illuminate the registration plate clearly.

Trailer Lighting Maintenance

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Regular maintenance of your trailer lights is essential to ensure they remain functional and bright. Here are some maintenance tips:

Inspect regularly: Check all lights before each journey to ensure they're working correctly.

Keep clean: Dirty lights can reduce their effectiveness. Clean them regularly to maintain their brightness.

Replace bulbs promptly: If a bulb fails, replace it as soon as possible. Driving with a faulty light can be dangerous and is against the law.

In conclusion, lights are not just a recommendation but a legal requirement for small trailers in the UK. They play a vital role in ensuring safe and responsible towing. Always ensure your trailer is equipped with the correct lights, and they're in good working order before setting off on your journey.