What's inside a traffic light (+repair)
12:37
Dodgy CFL-style LED in a funny box
17:56
Fixing what somebody else failed to fix (the 2nd nixie multimeter)
12:03
Teardown of an LED Traffic Light Module
30:08
Inside a Samsung LED retrofit tube. (Older style?)
23:51
Hacking an extra trashy Poundland LED lamp (with schematic)
12:49
What's inside a SYNCHROSCOPE and how does it work
19:02
BLUblox red and yellow LED lamps (circadian blue free)
13:28