Inside the Most Famous Chinese LED Factory

Go to and enter “STRANGEPARTS“ at checkout to get 100 free blades with your purchase. Watch the next Strange Parts factory tour video early: Watch this video without ads: See how LEDs are made! We're visiting World Semi's factory in Dongguan, China, just outside of Shenzhen. We'll see how the infamous WS2812 addressable RGB LED, aka the Neopixel, is made from bare silicon wafers to finished working LEDs. It's one of the coolest factories I've ever been to. They have amazing machines that do everything from bare die placement to wirebonding, to fascinating custom LED testing machines. Today we're going to see how it's made! To learn more about World Semi and their LEDs, go to To purchase LEDs, go to Get exclusive behind the scenes access to Strange Parts on Patreon and help support more videos like this one: Other ways to connect with Strange Parts: @strangeparts @strangeparts