Notes on sourcing & compliance

Practical pieces on charger and power strip certification — written from the factory side, for people who have to make the buying decision.

Sourcing · US Market

UL Report vs UL Listing: What Your Supplier Actually Has

A test report says a sample was tested. A listing says the factory is being inspected every quarter. Three documents, three levels of authority — and five questions to tell them apart.

Read

Sourcing · Certification

Is Your Model Number on the Certificate?

A certificate covers the models named on it — not the ones that look like them, and not the ones from the same mould. Four ways series coverage breaks, and a ten-minute check to run before you pay the deposit.

Read

Standards

Power Strip vs Charger: Why One Certificate Can't Cover Both

A charger is a power source. A power strip is a wiring accessory. Different hazards, different standards — and a USB-C strip needs both assessments.

Read

Sourcing · Certification

Why a CB Report Is Worth More Than a CE Certificate

CE tells you about one market. A CB report can open dozens. What the CB Scheme is, what it actually saves, and — just as important — what it doesn't do.

Read

Verification

How to Verify a CE Certificate in 5 Steps

The five checks that catch almost every fake, expired or mismatched certificate — and the one step most buyers skip.

Get the checklist

Markets

Certification Requirements by Market

Twelve markets on one page: what's required, what's commonly requested, plug types and voltage.

Get the sheet

Marketplaces

What Amazon Actually Asks For on Chargers

The documents sellers need, and the five reasons listings get removed — including the one that catches most power bank sellers.

Get the checklist

Want a topic covered? If there's a market or a document you've been stuck on, tell me — I'll write it up. Send it over.