OEM · Standards
Copper vs Copper-Clad Aluminium Conductors in Lighting Track
Solid copper or copper-clad aluminium (CCA) in lighting track? How to tell them apart on a sample, why it matters for heat and joints, and what to specify.
How to Vet a Lighting Track Manufacturer in China
Most lighting track sold under European brands is made in China. The hard part is not finding a supplier; it is finding out, before the first order, which one actually makes the track and tests every length.
To vet a lighting track manufacturer in China, check three things before price: that the supplier makes the track itself (profile, conductors, assembly and testing in its own plant), that a sample passes simple bench checks (solid copper conductors, sound profile, firm adapter lock, continuous earth), and that it can show a test report to IEC/EN 60570 for the exact profile you will buy. A supplier that passes all three can usually also hold the same quality across repeat orders, which is what an OEM programme depends on.
Maker or trader: why it matters
Trading companies are not a problem in themselves. The problem is that a trader cannot control what changes between one batch and the next. If the profile, the conductor or the insulator comes from whichever workshop is cheapest that month, the second order may not match the sample you approved.
A track factory controls the steps that decide quality:
- Profile. Aluminium extrusion, wall thickness and the shape of the slot the adapter locks into.
- Conductors. Copper grade and cross-section, and how they sit in the insulator.
- Cutting and capping. Clean, burr-free ends and conductors set back correctly.
- Testing. An electrical test on every length, not only on a type sample.
Signs you are talking to the factory
| Question | A factory usually | A trader usually |
|---|---|---|
| What do you make? | Track systems and their parts only | Every lighting category |
| Where is the profile extruded? | Names the step and shows it | Avoids the question |
| Which test runs on every length? | Names it, for example insulation and continuity | Refers to a certificate |
| Can you cut to my lengths? | Yes, cut and capped at the plant | Standard lengths only |
| Who is named on the test report? | The factory and the exact profile | Another company, or a different product |
Ten minutes with a sample
Ask for a short length of track with a feed, a coupler and an adapter. These checks need only a saw, a caliper and a continuity tester.
- Conductors. Cut the end. Solid copper is copper-coloured right through; copper-clad aluminium shows a silver core under a thin copper skin, and runs hotter at the same current.
- Profile wall. Measure the aluminium wall with a caliper at several points. It should be even along the length; thin or uneven walls twist under load and loosen adapters.
- Finish. Look along the profile in raking light. The coating should be even, with no bare edges at the slot.
- Adapter lock. Fit and turn an adapter several times. It should lock with a clear click, sit straight, and not rock in the slot.
- Earth path. Join two lengths with the coupler and test continuity from one profile body to the other. On track where the profile carries the earth, a joint that breaks this path is a safety fault.
- Ends. The cut end should be clean, capped, with no burrs and no conductor standing proud.
Documents to ask for
- Test report to IEC/EN 60570, the standard for electrical supply track systems for luminaires, from an independent laboratory. Check the report number, the laboratory, and that the factory and the exact profile are named.
- CE declaration of conformity under the Low Voltage and EMC Directives, for each system.
- RoHS test report covering profile, conductors and plastics.
- A datasheet per part, with rating, dimensions and materials, so the codes on your order match a document.
A certificate that names another company, or a different profile, says nothing about the track you are buying.
Questions about production
- Which steps happen in your own plant, and which are bought in?
- Which electrical test runs on every length before packing?
- How do you keep colour the same between orders months apart?
- Can you cut to any length, cap the ends and fit the conductors at the plant?
- What happens to your codes if a part changes: is the customer told before shipping?
If you are buying for your own brand
An OEM programme adds a second set of checks. The track will carry your name, so the supplier has to hold the specification for years, not for one order.
- Your length, cut at the factory so installers do not cut on site.
- Your colour, named by RAL number, with a reference sample kept from the first order.
- Your brand on the profile, adapter, carton, barcodes and datasheets.
- A frozen specification: the profile, conductors and test regime stay the same as the standard range.
- Order size that suits a launch: a small first order, then repeats against the same codes.
For what an OEM supplier can change and what it costs, see the OEM track sourcing guide.
Red flags
- A test report or certificate that names a different company or product.
- "Copper" conductors that show a silver core when cut.
- Samples that come from stock with no way to order the same codes again.
- No answer to which test runs on every length.
- Claims of certification that no report number backs up.
How G-Tracks answers these questions
G-Tracks is a lighting track manufacturer based in China. Profiles are extruded, cut and assembled in our own plant, and every length is tested for insulation and continuity before it is packed. Track is built to IEC/EN 60570, cut, capped and fitted with conductors at the factory at any length from 0.1 m to 6 m, in black or white from stock or any colour to order, under our name or yours, with no minimum order. Certificate copies, with laboratory and report number, are available on request.
Frequently asked questions
How can I tell a lighting track factory from a trading company?
Ask which steps happen in their own plant: profile extrusion, cutting, conductor insertion, assembly and electrical testing. A factory can show each step and names the test it runs on every length. A trader usually shows finished stock, offers every product category, and cannot say who made the profile.
What should I check first on a lighting track sample?
Cut the end and look at the conductors: solid copper is copper-coloured all the way through, copper-clad aluminium shows a silver core. Then measure the profile wall, check that an adapter locks firmly, and check earth continuity across a coupler.
Which documents should a lighting track supplier provide?
A test report to IEC/EN 60570 from an independent laboratory, with the report number and the factory and product named on it; a CE declaration of conformity; a RoHS test report; and a datasheet per part. Check that the report covers the exact profile you are buying.
Is a minimum order normal for OEM lighting track?
Many suppliers set one, often per colour or per printed label. G-Tracks has no minimum order for stock or OEM items, so a brand can start with a small first order against the same codes it will repeat later.
