The next generation COB LED? (Radical new style of bare LED chip.)
30:18
How microwave body detectors work. With RF section schematic.
23:51
Hacking an extra trashy Poundland LED lamp (with schematic)
19:58
Inside the Most Famous Chinese LED Factory
11:22
Unusual circuitry twist - emergency light module
12:15
How diodes, LEDs and solar panels work
28:55
Driverless 50W LED teardown and schematic.
18:03
ULTRA Bright 100W Studio LED Light from Old PSU
14:14