Last reviewed: Sep 15, 2026
The question a US buyer is really asking when they ask about UL is whether the product carries a listing from a Nationally Recognized Testing Laboratory. The mark itself is less interesting than the paperwork behind it.
Two brands, one programme
UL and ETL are both NRTL marks. OSHA recognises a list of laboratories qualified to test and certify products against US safety standards, and a listing from any of them satisfies the requirement that most retailers, inspectors and building codes actually impose. The Nationally Recognized Testing Laboratory programme is administered by OSHA, and its public list is the reference to check a claim against.
So why do specifications say UL?
Because UL wrote many of the standards, and old specifications name the standard by its brand rather than by its number. A requirement that mentions UL 153 is usually a requirement about the test, not about which laboratory performed it. Ask, in writing, whether an equivalent NRTL listing is acceptable — the answer is normally yes.
What the certificate will not tell you
Four things matter more than the document image a supplier sends you:
- The file number, which lets you check the listing in the laboratory's own directory
- The scope, which names the product category and the covered models
- The manufacturer named on the listing, which should match the entity you are buying from
- The date, because listings are maintained and an old certificate may belong to a discontinued product
The category trap
A supplier who holds a listing for table lamps cannot extend that listing to floor lamps by printing the same mark on the carton. Listings are issued per product category and per construction. If the model you are buying is not named in the scope, the mark does not apply to it, whatever the salesperson says.
Ask which models the listing covers, and compare that list with the purchase order. It is a five-minute check that prevents a container of unsellable stock.
Ongoing maintenance
A listing is not a one-time event. The laboratory periodically inspects the factory and the follow-up service is part of what you are paying for. A supplier who cannot explain their follow-up arrangement is usually a supplier who bought a test report rather than a listing.
The distinction that matters commercially
The practical difference between the two terms is not technical at all. ETL is the mark of a specific certification body; UL Listed is the certification itself, and the mark on the product identifies which organisation performed the evaluation. A product can be UL Listed and evaluated by ETL, or listed by another NRTL, and the certification scope is set by the standard rather than by the mark.
What a buyer actually needs to know is narrower: whether the listing covers the product they are buying, at the ratings they need, in the market they are shipping to.
| What you are checking | Why it decides the shipment |
|---|---|
| The standard named on the listing | Confirms the evaluation scope matches the product type |
| The model number on the listing | A family listing is not automatically every variant you order |
| The voltage and frequency ratings | A 120V listing says nothing about a 230V requirement |
| The issuing body's mark | Determines whether your customer's own QA will accept it |
| Whether components are listed too | Drives whether your assembler needs separate incoming inspection |
Requirements differ by market and by buyer. Confirm with your customer's compliance team which listing they will accept before you place the order, not after.
Related reading
Frequently asked questions
What is the difference between an ETL listing and a UL listing for a portable lamp?
Both are nationally recognized third-party safety certifications accepted across the United States and Canada. ETL is the mark administered by Intertek and UL is administered by UL Solutions; each evaluates portable luminaires such as floor and table lamps against UL 153, with CSA C22.2 covering the Canadian requirement. A lamp that is ETL listed to UL 153 is tested to the same product safety standard as a UL listed lamp, so either mark satisfies the typical retail and contract requirement for a listed portable lamp.
Do US and Canadian retailers require a UL mark specifically, or is ETL acceptable?
Most US and Canadian retailers and distributors accept either a UL or ETL listing as long as the lamp is certified to UL 153 for portable luminaires and CSA C22.2 for Canada. State the required standard on the purchase order rather than a specific mark, then verify the certification body and number on the file and on the product.
How can I verify a lamp's listing is current?
Ask the supplier for the current listing report and certification number, then confirm the model and production site match the file. Listings are tied to a specific construction, so a change to the driver, cord, or shade can require re-certification before the revised model is sold.
What does ETL listed mean and is it the same as UL listed?
The phrase means an independent testing laboratory evaluated the product against a published safety standard and authorises the mark on each compliant unit. ETL and UL are different organisations running that same kind of programme; for a portable luminaire the underlying test standard is UL 153 together with CSA C22.2 for Canada. What a buyer should verify is the current listing report, the model number on the carton and the factory location named in the file, rather than treating the logo on the box as evidence. Retailer acceptance generally follows the standard, not which laboratory issued the mark.
Sourcing lamps for your business?
We stock the Anrotix range in the United States — complete with LED bulbs and accessories — and supply from 10 units, mixed across SKUs.
Request wholesale pricingRelated product: ETL listed torchiere — the listing mark sits on the carton and the rating label
Recruiting regional partners worldwide — help@anrotix.cn