Certification is the area where first-time importers are most often given an answer that sounds reassuring and means very little. The documents are usually real. The problem is usually that they are the wrong documents, for the wrong model, issued to a different company, or no longer valid, and nobody checks.
This guide is written so you can verify a supplier's claims yourself in about fifteen minutes, without special equipment or contacts.
What each mark actually means
The three marks most often quoted together prove three different things, and only one of them is a safety test.
CE is a regulatory declaration, not a quality certificate. The manufacturer declares that the product meets applicable EU safety, health and environmental requirements. Critically, many solar products fall under self-declaration, which means the manufacturer signs the declaration themselves with no third-party involvement. A CE mark therefore tells you almost nothing about build quality. It tells you someone filled in a form.
IEC standards are the real technical tests. For PV modules, IEC 61215 covers design qualification and type approval while IEC 61730 covers safety. For inverters, IEC 62109 covers safety and IEC 62116 covers anti-islanding. These are laboratory tests against a named standard, and a report for the exact model is meaningful evidence in a way that a CE mark is not.
RoHS is about restricted substances, not safety. It concerns lead, mercury, cadmium and hexavalent chromium in electronics. It is genuinely worth having for regulatory import purposes, but a RoHS-compliant product says nothing about whether the inverter will survive five years in a hot warehouse.
If you remember one line from this section, make it this: the CE mark tells you a form was filled in, the IEC report tells you a product was tested, and only one of those is worth paying for.
The five checks that catch a bad certificate
The first and most productive check is simply whether the model number on the report matches the model on the label. This catches more problems than anything else. Reports are often for a neighbouring model in the same family, or for an earlier revision. If the report says XYZ-2000 and your unit says XYZ-2000-E, you do not have a valid report. This is the same class of error that holds containers at port when an MSDS does not match the battery label, and it deserves the same suspicion. Our UN38.3 guide covers the shipping version of the problem in full.
The second check is who the certificate is issued to. The applicant name should be a real company. A certificate issued to a trading company with no factory is not automatically disqualifying, but you should then ask where the actual manufacturing site is and request a report that names it. A genuine factory test report names the manufacturing entity and the address.
The third is which laboratory issued it, and this is the check most often skipped. There is a short list of labs whose certificates are accepted everywhere and a long tail that are not. A report from an unrecognised lab can cost you the shipment, because a customs authority or a tender client can reject it. For the batteries and the C&I cabinets discussed in our C&I storage guide, the fire-suppression documentation in particular has to come from a lab the authority recognises.
The fourth is whether the report is still valid. Test reports do not usually carry an expiry date, but the underlying factory and product may have changed. A report from 2019 for a factory that has since moved, or for a product that has since been revised, may not be accepted. Ask the date, and ask whether the product has been modified since.
The fifth is whether the report covers the whole product or only a component. A battery cell certificate is not a battery pack certificate, and a certification for a single unit is not a certification for the whole system. This matters for storage, where the pack, the BMS, the cabinet and the fire system may each have separate requirements.
The paper test you can do in five minutes
Before any of that, there is a fast sanity check. Ask the supplier to send a clear scan or photograph of the document rather than a forwarded attachment with no context, then look at it with a short list of questions in mind. Is there a named issuing laboratory with a real address? Is there a report number, a test date, and a signature or stamp? Does the model on the document match the model on the quotation? Does the applicant name correspond to a company you can look up? Is the standard number one you recognise for this product type?
A genuine document answers all five. A document that answers none of them, or that a supplier cannot produce at all, is the clearest signal there is. The reason to ask this early rather than later is simple: it costs you nothing to ask before paying a deposit, and it costs you a container to find out afterwards.
Where substandard product actually shows up
It is worth being clear about what a certificate does and does not protect you from, because in the African import market the majority of quality problems are not fake certificates on bad products. They are genuine certified products used outside their design envelope, or uncertified and untraceable product sold on price.
Certified does not mean right for the application. A perfectly valid IEC 61730 module tested under standard test conditions is still not the right panel for a coastal site with salt spray, and a genuinely certified inverter rated for 45 degrees ambient is still undersized for a 60 degree cabinet. The certificate establishes a floor, not a fit. Getting the specification right is what protects the project, and that is what our hybrid inverter guide and battery sizing guide are about.
At the other end, substandard product typically shows no serial number, no batch traceability, and no factory that will honour a claim. A supplier who will not give you lot-level traceability is telling you something more useful than any certificate will.
Tender and project documentation
If your customer is a corporate, a project developer or a government programme, they will have documentation requirements that go well beyond a CE mark, often including insurance certificates, factory audit reports and specific local registration. Ask for the client's compliance list before ordering rather than after, because a missing document at tender stage can cost you the whole order. Our guide to reading factory audit reports covers the document side of supplier qualification.
If you want a second opinion, send us the certificates or the quotation. We will tell you which document covers which requirement, what is missing, and whether the model on the paperwork matches the model being offered.