Testing Rigid 38mm COB LED Filaments from AliExpress! (3V Multi-Color)

Hi everyone! In this video, I’m showcasing these unique 38mm, 3V multicolor rigid COB (Chip-on-Board) LED filaments that I recently purchased from AliExpress for an upcoming build.

Where to Buy: https://s.click.aliexpress.com/e/_c3ijpoq1

Unlike flexible silicone LED strips, these tiny filaments are entirely rigid and packed with dozens of tightly grouped, miniature LEDs. They offer incredible brightness with very low power consumption, but they can be delicate! I’ll show you how to identify the polarity (+/-), how to safely power them using a current-limiting resistor, and what happens when we test their limits. Stay tuned until the end to see what happens when we combine the colors!

What do you think I should build with these? A retro neon-style sign, a custom lamp, or a sci-fi prop? Let me know your ideas in the comments below!

* 0:00 - Introduction to 38mm Rigid COB LED Filaments
* 0:13 - Unboxing & Physical Overview (Rigid vs. Flexible)
* 0:23 - Microscopic Look & Polarity Identification (+/-)
* 0:35 - Safety Warning: Why you need a resistor
* 0:45 - Powering and Testing the Colors (3V to 5V Over-voltage test)
* 1:03 - Combining Colors to Create White Light
* 1:20 - Project Ideas & Outro

Where to Buy: https://s.click.aliexpress.com/e/_c3ijpoq1