Teardown of a "27W" ultraviolet blacklight bar from eBay.
17:11
Inside an invigorating electro-health device - with schematic
20:55
The next generation COB LED? (Radical new style of bare LED chip.)
16:52
Fake UV disinfection lamp from eBay.
22:23
Autopsy of failed grow light and test of actual power versus stated power.
11:55
Exploring the construction of medical electrodes
15:34
Exploring a faulty LED driver (with schematic)
23:51
Making a Fully Functional Jet Engine from Soda can | diy Jet Engine | homemade Jet Engine
22:50