If you have ever shopped for replacement trailer lighting, you will have come across the term IP67. It appears on product listings, spec sheets, and packaging, but what does it actually mean? And more importantly, why should you care when choosing IP67 trailer lights for your vehicle?

This guide breaks it down in plain English so you can make an informed decision next time you need to replace or upgrade your trailer lighting.

Understanding IP Ratings

IP stands for Ingress Protection. It is an international standard (IEC 60529) that tells you exactly how well an electrical enclosure resists dust and water. The two digits after “IP” each have a specific meaning:

  • First digit (6) – Dust protection. A rating of 6 is the highest possible, meaning the unit is completely dust-tight. No particles can get inside, full stop.
  • Second digit (7) – Water protection. A rating of 7 means the unit can withstand temporary submersion in water up to 1 metre deep for 30 minutes.

So when you see IP67, you are looking at a light that offers complete dust protection and can handle being submerged in water. That is a serious level of protection.

Why IP67 Matters for Trailers

Trailers live a hard life. Unlike the towing vehicle, they sit outside in all weather, get blasted with road spray at motorway speeds, and are regularly jet-washed after muddy jobs. Consider what your trailer lights actually face:

  • Constant road spray and standing water on the motorway
  • Heavy rain during long journeys
  • Pressure washing after off-road or construction site work
  • Full submersion when launching boat trailers at slipways
  • River and ford crossings on rural routes
  • Mud, dust, and grit from unpaved roads and building sites

Cheaper lights rated at IP54 or IP65 simply cannot cope with these conditions long-term. Water-resistant is not the same as waterproof. An IP65 light can handle a jet of water from a hose, but it is not designed for submersion. Once water gets inside the housing, condensation forms on the lens, connections corrode, and LEDs start failing one by one.

The Real Cost of Cheap Lights

We see it all the time. A customer fits a budget set of rear lights, and within six months they are back because moisture has got in and half the LEDs have failed. That means another purchase, another fitting session, and potentially an MOT failure or a roadside stop from the police in the meantime.

IP67 trailer lights are built to last. The housings are fully sealed, the gaskets are rated for repeated exposure to water, and the internal electronics are protected against the dust and grit that trailers encounter daily. You fit them once and forget about them.

Every Lucidity Light We Sell Is IP67 Rated

At Trailer Solutions, we stock the Lucidity range of LED trailer lights, and every single unit carries an IP67 rating. Whether you need rear combination lamps, marker lights, or number plate illumination, you are getting the highest practical level of dust and water protection available.

This is not a marketing claim. It is a tested, certified standard. Combined with E-mark approval for UK road legality, IP67 trailer lights from the Lucidity range give you confidence that your lighting will perform in the worst conditions Britain can throw at it.

Choosing the Right IP67 Lights

When selecting replacement lights, check the IP rating on the product specification, not just the description. Terms like “waterproof” and “weather-sealed” are meaningless without a certified IP rating to back them up. IP67 is the benchmark for trailer lighting, and it is the minimum you should accept.

Browse our full range of IP67 trailer lights in the Trailer Solutions shop. Every product listing includes the full IP rating and E-mark certification details. If you are unsure which lights fit your trailer, get in touch and we will point you in the right direction.