High voltage LED tester with VERY clever circuitry (and hidden features)
1:52
Audio reactive LED controller
27:02
The Turbo Charged Laptop. Literally.
22:03
PK-A22F high voltage module teardown with schematic
34:54
I Saved an Electron Microscope from the Trash
15:48
Horrific LED tester that can literally kill you - (with scary schematic)
16:57
Why Do LED Bulbs Fail? An Autopsy!
1:00:15
I bought a freeze dryer so you don't have to
19:48