Good addressable LED VS Fake LED (SK6812/WS2812B)

after few times of bad experience with sourcing addressable led tapes, i spent 2 weeks to search something real that you know know
my start was 5 years ago when i start to get my fan looks more cool and i’ve tested addressable LED found that lots of vendor like sparkfun adafruit or polulu ,what surprised was all these strip seems made from a chinese vendor cause all the PCB printed iPixel led s602812 ,as the price too high and i used such strip more and more so i turned to alibaba to find factory directly
the price much cheaper from alibaba compare to others but what’s the pain is the quality sucks since i figure out the real

It’s just a waste of time and money to get such job
after the bad experience i started to talk to sparkfun tech guy and confirmed the right vendor ipixel
you will point out the different of my two version chip

this one from ipixel ,after compare to my old one from sparkfun ,100% same version
gold line, 9 wire, Two welding ball
wire no across, red color chip in the middle,Color mixing uniformity, right
design with heat radiation, more reliable

looks like silver wire or metal wire soldering the chip
and the green blue chip much smaller than ipixel led
most important that the Red should be put in the middle but this one no

cheap is not a good option when we’ve get lost
here is a recommend of link
<REDACTED - SPAM> much cheaper than adafruit but same quality as they are the vendor of ada

keep a eyes when you get something too cheap and good luck guys