How can a buyer check that a UL, ETL or CSA listing on a charger is real?

Main answer · Wecent Editorial Team

Short answer: Look up the listing yourself in the certification body’s public directory, using the file or certificate number and model name, and check that the manufacturer, model, ratings and status match your product. Do not rely on a scanned certificate or a mark on a data sheet. Keep a dated screenshot of the directory entry.

Why a certificate alone is not enough

A scanned certificate can be out of date, edited or for a different model. A mark printed on a product does not prove a listing exists. The public directory is the reliable source.

Where to look

• UL: the Product iQ database lets you search by company, file or model.
• Intertek ETL: the ETL directory lists certified products.
• CSA Group: the product listing search covers certified products.

The Standards Council of Canada publishes a list of recognised Canadian approval marks, so you can check that a mark is accepted in Canada.

What to check

1. The company name and address match the manufacturer.
2. The model number is exactly the one you will buy.
3. The ratings, such as voltage, current and output, match.
4. The listing is active, not withdrawn.
5. The standard listed suits the product.
6. The mark on the product matches the one in the listing.

Red flags

• No entry in the directory.
• An entry for a different model or company.
• A certificate number that does not exist.
• A mark with no body named.
• A supplier unwilling to give the file number.
• A certificate that lists only part of the product, such as only a cable.

What to do if something does not match

Ask the supplier and the certification body directly. Do not buy until the discrepancy is explained in writing.

Keep records

Save a dated screenshot or PDF of the directory entry with the order, and repeat the check periodically, since listings can lapse.

Quick summary

Look it up yourself, match company, model and ratings, check status and keep dated records.

Example record

Directory name, search term, date, screenshot file, company, model, ratings, status and reviewer. Keep one line like this per model. When a retailer or an authority asks for proof, you can answer in minutes, and you will see at once which listings are due for a recheck.

Sources checked on 24 Oct 2026: UL Product iQ; Intertek ETL directory; CSA Group: Product listing; Standards Council of Canada: Recognized approval marks.

Where this answer says to confirm with Wecent, the detail is not published on the product page and has to come from the datasheet or the factory. General facts come from the regulators, standards bodies or device makers named in the text.