3 ms·
I also have such a lamp. Supposedly it's USB-C connection, but it only works when connecting with USB-A to USB-C cable. My guess is it's due to the requirement
by zerof1l 1y ago
I also have such a lamp. Supposedly it's USB-C connection, but it only works when connecting with USB-A to USB-C cable.
My guess is it's due to the requirement to comply with EU law about USB-C. But proper USB-C requires active circuitry but manufacturers don't add it to save a few cents.
- franciscop 1y agoThis is usually a single tiny resistor in the right place that is missing, which is not a few cents in a mass production, it is just a fraction of a cent. But someone needs to know to actually put it there.
- robin_reala 1y agoI doubt it: that only applies to equipment with radio capabilities.[1] Also, Kmart is regional to north america, it doesn’t exist in the EU. [1] https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A52021PC0547 https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A...
- Uvix 1y agoIt doesn’t really exist in North America anymore either - down to only 5 stores. This is about the Australian version.
- mystified5016 1y agoProper USB-C charging requires no active circuitry. You need a pull-down resistor on both CC lines. Not just one, or your thing only charges if the USB C cable is rotated the right way up. As mentioned, the requisite resistors are less than one cent each in quantity.