Justech 2-pack LED side marker lights (12–30V, IP65, triple colour) for trucks, trailers and caravans
Product description
The essentials
If you’re trying to tidy up (or modernise) your truck, trailer or caravan lighting, side marker lamps are one of those small add-ons that make a noticeable difference—especially in poor weather. This Justech 2-pack is designed as a compact LED side marker solution with triple-colour capability (white, red and amber/yellow tones depending on the unit), aiming to keep visibility consistent from different angles.
On paper, the package is built around three things: easy wiring for 12–30V vehicles, weather resistance with an IP65 rating, and a silicone-encapsulated construction intended to handle real road conditions rather than just showroom display. Still, it’s worth being a bit careful: the “triple colour” promise relies on how your vehicle’s setup and wiring correspond to the intended colour function, so it may not suit every existing loom without a quick check.
What to know before you buy
These are 74mm side marker lights supplied as two pieces, positioned for mini side/side placement where you want clearance or identification lighting. The idea is straightforward: they can be used as front and rear top marker lights, side lights, clearance lights or identification-style lamps, depending on how you route and mount them.
The wiring note you’ll want to take seriously is that the product description states red is the positive pole and black is the negative pole. That means swapping polarity by mistake is likely to ruin your day—so it’s best to confirm polarity on your vehicle or harness before committing.
Also, the mention of two E-marks and E-mark certification suggests they’re intended to meet road-traffic requirements. That’s a reassuring checkbox for UK road use, though you’ll still want to ensure your installation matches your vehicle’s requirements.
Key features that matter in use
The brightness and visibility angle is built around 3030 LED chips. In everyday terms, that usually translates to a crisp, direct light source rather than a dim diffuser—helpful for the “someone needs to see you” scenario on narrow roads or when you’re in a convoy behind slower vehicles.
Construction-wise, these are described as using silicone, with a design intended to be flexible and more resistant to corrosion. The lens and housing are said to be ultrasonically welded into a single unit, with internal LED surfaces sealed to adapt to weather conditions such as heavy rain, snow and fog. For anyone who’s grown tired of marker lights failing after seasonal grime and vibration, it’s the sort of detail that can genuinely extend service life.
One more practical detail: with an IP65 waterproof rating, it’s positioned as a weatherproof outdoor light rather than an indoor decorative lamp. It still won’t replace proper mounting practices—loose seals or incorrect cable routing can shorten any light’s life.
Tech specs
- Type: LED side marker lights (triple colour)
- Name: 2pcs LED side marker lights
- Voltage range: 12–30V
- Size: length 74mm (shorter 140mm)
- Waterproof rating: IP65
- LED chips: 3030 LED chips
- Materials: silicone (lens and housing ultrasonically welded into a single unit)
- E-mark: two E-marks (road traffic approval mentioned)
Who it suits (and who should look elsewhere)
It makes sense if you’re replacing or adding compact side marker lamps on a truck, trailer, lorry, RV or caravan, and you want something designed for outdoor conditions. If you’re doing a tidy, functional upgrade—like adding marker lights along a trailer edge for better clearance visibility—this fits the “small lamps, practical outcome” style of mod.
It’s not necessarily the best match if you’re expecting it to behave like a fully integrated lighting system out of the box. You may still need to think about how your wiring controls white/red/amber functions, and whether your current setup is already compatible with the stated red positive / black negative connection approach. If your priority is a fully plug-and-play replacement with zero wiring checks, you may find the lack of explicit plug/connector detail a little limiting.
Pros
- IP65 waterproof design aimed at rain, snow and fog conditions
- Silicone construction described as flexible and more corrosion resistant
- 3030 LED chips for a bright marker-light role
- Triple-colour capability (white/red/amber/yellow tones mentioned)
What stands out
The standout here is the combination of weather sealing (IP65 + welded single unit) and the compact 74mm footprint. For roadside visibility, that combination tends to matter more than flashy marketing. However, the “triple colour” aspect is something you’ll want to map to your vehicle’s intended wiring/colour control—otherwise you could end up with the wrong colour where you need it.
Is it worth it?
Buy it if you need a compact, weather-oriented LED side marker lamp for a 10–30V (as described) or similar vehicle setup, and you want an E-marked option with IP65 sealing. It suits most common trailer/lorry/RV marker-light upgrades where you’re willing to do a sensible wiring check.
Skip it if your install needs guaranteed plug-and-play compatibility with your existing connectors, or if you can’t confirm how your setup selects the white/red/amber outputs. It might still work, but without that clarity, you could waste time troubleshooting colour behaviour rather than getting straight to the job.
FAQ
How do the colours work on this triple-colour side marker light?
The listing mentions yellow, white and red lighting, but it doesn’t spell out the exact switching method. In practice, you’ll want to confirm how your vehicle’s wiring controls each colour so the intended lamp output matches your installation.
Is it suitable for bad weather?
It’s described with an IP65 waterproof rating, and the build is said to be sealed against weather such as heavy rain, snow and fog. For typical UK road exposure, that’s the direction you’d want.
What voltage is it designed for?
The side marker lights are specified for 12–30V vehicles.
What size are the lights?
Each unit is described as 74mm in length (shorter version referenced).
What’s the wiring polarity?
The description states red is the positive pole and black is the negative pole.