Resources
Procurement Resources
Catalogs, buying notes and FAQs — everything you need before requesting a quote.
Reports worth reading first
IPX waterproof ratings: what the number does and does not say
The most over-used word in personal care specs - and how to make a rating enforceable.
How to audit an OEM electric toothbrush: a teardown checklist
Spec sheets can be copied; a teardown cannot. The five-step check before you order.
What a teardown cannot tell you: the five data sets behind a real BOM
A teardown shows structure. It does not give you a BOM - here is what is still missing.
11 failure modes in high-speed hair dryers and their root causes
The failures we see most often and the tests that intercept each one before shipment.
What a 14.3% weight difference tells you about a hair dryer
A weight gap is a design signature, not a quality verdict. How to measure it properly.
Air speed is not air volume: reading a wearable fan spec correctly
Two fans within 2% on air speed differed by 41% in the air they actually moved.