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Just a quick one on a thing i discovered today. I ordered USB-compatible, RED, waterproof LED strip from an eBay seller. as expected, i received 50cm strip with a USB cord, but taking a closer look, i found out that it’s actually a flex-PCB for RGB LED strips.

RRR_off

and in fact, the package of the LEDs is a classic 6-pin 5050. weird: the resistors are all the same. and here’s why:

RRR_on

it looks as if they just used their regular RGB LED manufacturing process but instead of bonding and R, G and B chip into the package, they bonded just three R chips. a colleague pointed out that these LEDs might be the result of a failure in the manufacturing process, but i also ordered those strips in warm white, and guess what: 6-pin 5050 package, RGB-strip flex-PCB and three white chips inside the LEDs.

are single-color LEDs still a thing? probably not…

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