DARKGUARD 7-Function LED Trailer Tail Lights (12V/24V) – ECE IP67 rear lamps
Product description
What it is and why you might want it
DARKGUARD’s rear LED trailer lights are designed to replace older tail lamp setups on trailers and similar vehicles that run on either 12V or 24V systems. If you’ve ever had to deal with dim bulbs, frequent failures, or wiring that looks like it’s lived through a few winters, this kind of unit is built for a more straightforward “fit-and-forget” approach.
On paper, the standout idea here is the combination of multiple rear functions into one practical lamp. Rather than juggling different components, the unit aims to cover brake/stop, tail position, rear fog, indicators, reversing, number plate illumination and a reflector role using LED technology.
Key features in plain English

The lights are rated IP67, which is the manufacturer’s way of saying the units are fully sealed against dust and can handle being submerged for short periods. That matters for caravans, boat trailers, recovery vehicles and any trailer that sees spray, puddles, and road grime.
Each rear lamp is listed with 71 LEDs per lamp (and 142 LEDs per pair), using “latest LED technology” language and describing a bright, energy-saving approach. The housing is described as ABS with an unbreakable PC lens, plus shock resistance. It also includes a PVC soft base cover and a bolt cap meant to help protect the mounting area from scratches.
A quick look at the build details also suggests the wiring is designed to be used rather than constantly reworked: the 6-core trailer cable length is stated as 27cm, and the product mentions pure copper cable for conductivity. That won’t guarantee zero installation issues on your vehicle, but it’s the sort of detail that can make fitting less painful.
There’s also the EU approval claim: the lights are stated as ECE R3 / R4 / R6 / R7 / R23 / R38 approved. If you’re buying specifically to stay within road-legal expectations, that’s a useful checkbox to have.



What you get for the 7 functions (and what it doesn’t solve)
The “7 functions” marketing is fairly specific: stop/brake lights, tail lamp with a “neon effect” position light, rear fog light, turn signal indicator direction lamp, reversing light, number plate light, and a reflector as the 7th function.
That’s a lot to pack into a single rear light assembly, and it’s exactly the sort of thing you’d pick when you want fewer parts and a cleaner rear end. For example, if you’re maintaining a caravan trailer and want the indicators, fog and reverse lights all handled by the same rear lamp unit, this setup is built around that idea.
However, it may still be worth setting expectations: it’s not a replacement for correct wiring design and proper trailer lamp board layouts. If your current harness, fuse setup, or mounting positions are unconventional, you could find that the physical bolt spacing or cable length affects how painless the swap is.

Tech specs that matter during fitting
Here are the practical details that usually decide whether a trailer light upgrade will actually fit first time:
- Size: 235mm x 110 x 47mm
- Bolt distance: 150mm
- 6-core trailer cable length: 27cm
- Operating temperature range: -40℃ to +65℃
- Waterproof rating: IP67
You’re also told it comes with a PVC soft base cover and bolt caps, and uses a durable ABS housing with a PC lens. The inclusion of a “well protected carton packing” note is helpful for delivery, though it doesn’t replace good installation habits.



Who it suits best (and where it may fall short)
It’s a solid fit if you want an all-in-one rear LED trailer lamp with multiple functions, ECE approval listed, and a sealed IP67 design that’s meant for wet and dirty conditions. If you’re restoring a trailer, upgrading caravan rear lighting, or equipping a working vehicle used for haulage/recovery where reliability matters, this is the sort of product that matches that mindset.
It might not be the best choice if you’re after a super-specific appearance match to an existing OEM trailer lamp cluster, because the dimensions and bolt distance are fixed, and you’re swapping in this particular form factor. Also, while the IP67 and shock-resistance claims sound reassuring, any sealed lamp still depends on correct installation (gaskets, mounting surface, and cable routing) to keep water out over time.
Care and maintenance (keep it working like it should)

With sealed LED units, there’s less to “service” than with old bulb setups. The practical day-to-day thing is to keep the lenses clear and avoid long-term grime build-up around the mounting area. If you’re cleaning a trailer after winter use, gentle washing and ensuring the rear area isn’t forced with high-pressure water directly into seams is a sensible approach.
Is it worth it?
Buy DARKGUARD’s 7-function LED trailer tail lights if your main goal is a multi-function rear lamp replacement for a 12V or 24V trailer setup, and you value sealed IP67 protection plus ECE approval listed. The bolt distance and overall size look like the kind of specs you can quickly check against your trailer board.
Skip it (or at least double-check first) if you can’t confirm the bolt spacing (150mm) and you’re likely to rely on the 27cm 6-core cable length without rerouting. If you need a very specific mounting pattern or your existing wiring layout is a poor match, this can become more hassle than it should be.



Mini FAQ
How do the 7 functions work in practice?
The product claims the lamp covers brake/stop, tail position (with a neon-effect look), rear fog, indicators, reversing, number plate lighting and a reflector function.
Is it suitable for wet conditions?
It’s rated IP67 and described as fully sealed, with the fitting designed to include protective base coverage around the bolts.
Will it fit my trailer?
You’ll want to compare your current mounting bolt spacing to the listed 150mm bolt distance, and check the overall size (235mm x 110 x 47mm) as well as whether the cable reach (27cm) suits your wiring route.
Is it road-legal?
The listing states ECE approvals (R3 / R4 / R6 / R7 / R23 / R38). It’s still sensible to verify your local requirements for your trailer type before installing.
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