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Ten Guides For Accessory Buyers
Five technical guides on the standards behind these products, and five sourcing guides on importing from China, written from the factory side of the transaction. Every figure quoted comes from the specifications published on this site, and where a figure does not exist the guide says so.
Qi2 And Qi2.2: What The Numbers Actually Mean
Magnetic attachment, 15W, 25W and the word certified. Four things that get used interchangeably in product listings and mean four different things on a specification sheet.
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Reading A GaN Charger Spec Sheet: Why 65W Is Not Always 65W
The headline wattage on a multi-port charger is what one port can do on its own. The number that matters is what happens when both ports are in use.
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Power Bank Capacity, Watt-Hours And What Airlines Allow
Why 10000mAh does not mean ten thousand milliamp-hours of phone charging, and why the number on the airline's website is a different unit entirely.
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The Certification File A Lithium Accessory Needs
IEC62368-1, UL2056, UN38.3, MSDS, CE, FCC, CCC. Which of these is a product safety standard, which is a transport test, and which is a market access mark.
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USB 2.0, USB 3.0 And OTG: Choosing A Card Reader
Three decisions decide which reader is right: the interface speed, the connector on the device, and whether the reader has to survive a camera bag.
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How To Import From China
The sequence that actually works, from identifying a product to clearing customs, written from the supplier's side of the transaction.
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How To Find A Reliable Factory
Research, credentials, a visit, references and an inspection. Five checks, in the order that catches problems earliest and cheapest.
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Sourcing Agency Or Direct To The Factory
What an agency actually does, what it costs you in margin and control, and when going directly to the manufacturer is the better answer.
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Choosing A China Factory: Reputation, Capability, Communication, Price
Four criteria, and the reason price belongs last rather than first.
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China Manufacturing: The Questions Buyers Actually Ask
Lead times, minimum quantities, payment terms, quality control, intellectual property, packaging and logistics, answered from the factory side.
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Technical questions are answered by email during office hours in Shenzhen.