Open a counterfeit power strip and the fraud is physical. Wire far thinner than the rating printed on the case, because copper is the cost and thin wire is the saving. Surge protection models whose boards lack the metal oxide varistors that are supposed to absorb a surge, sometimes with the indicator light wired to glow anyway, protected in appearance only. Ground pins connected to nothing. Switch contacts that would embarrass a toy. Fire services and trading standards bodies in several countries publish these teardowns regularly, and the insides barely change year to year.
The counterfeiters economy is straightforward: a power strip is a commodity bought on price, its safety components are invisible, and the failure, overheating under load, happens months later inside a wall of plausible deniability. Attention is the only tax this category pays, so monitoring publications pay it loudly.
As with detectors, the certification mark is the product. UL and ETL listings can be checked in public directories by file number, and counterfeit strips routinely carry marks with numbers that are absent, belong to other products, or belong to a factory that never made a strip. The ratings printed alongside get invented in parallel: joule ratings for surge models with no surge components to spend a joule on, amperage ratings the internal wire cannot carry, breaker claims for breakers that are decorative switches.
A monitor desk check therefore goes further here than in most categories. Directory lookup by file number, a weight comparison, because copper has mass and genuine strips of a given spec weigh noticeably more than their copies, and a teardown budget for the finalists. This is one of the few consumer categories where a scale is a forensic instrument.
Bulk is the channel signature: cases of strips and cords aimed at offices, landlords, event setups, and the hospitality gray market, plus the marketplace listings priced for stocking stuffers. Extension cords deserve their share of the column, because the same undersized wire in a longer, coiled, load bearing format is a worse fire geometry, and counterfeit cords with famous brand packaging have been seized in large lots by customs agencies.
Seasonality helps the monitors calendar: listings spike before back to school, before the holidays, and during storm seasons when surge protectors trend. Enforcement sweeps timed to those windows, and buyer guidance published into the same searches, catch the category when buyers are actually looking.
Buy electrical distribution the way you buy detectors: named channels, verifiable listing file numbers, and a hard pass on bulk pricing that breaks copper economics. Facilities buyers should add the weight check to receiving, because the difference is detectable at the loading dock with a genuine reference unit and a scale. And any strip that runs warm under ordinary load comes out of service that day, brand name or not.
The category lesson generalizes, and it is the one this publication keeps returning to: when the safety component is invisible and the price pressure is real, the listing mark and the channel are the product. Everything else is plastic.
If this topic is useful, these earlier guides go deeper on connected questions: Counterfeit Hearing Aids: Monitoring a Medical Device Market Flooded With Amplifiers, Counterfeit E-Bike Batteries: The Listing Category Where a Fire Is the Failure Mode, and Counterfeit Pet Medication: Why Monitoring This Category Cannot Wait.
Look up the file number printed near the mark in the certifier public directory and confirm it matches the manufacturer and product type. No number, a number belonging to a different product, or a seller who cannot be identified are all stop signs.
Because copper is heavy and expensive. A strip built with wire of the gauge its rating claims weighs measurably more than a copy using thin wire. Weight is not proof by itself, but a suspiciously light strip at a suspiciously low price is the classic counterfeit combination.
It will pass power, which is exactly the trap. The missing protection components and undersized conductors show up during a surge or under sustained load, as a fire or equipment loss event, not as a daily malfunction you can notice and return.
Yes. Customs seizures and safety agency warnings document counterfeit and falsely certified cords with undersized conductors, which overheat especially when coiled or run under load. Treat cords with the same channel and listing discipline as strips, not as hardware store filler.