What's inside a traffic light (+repair)
19:02
BLUblox red and yellow LED lamps (circadian blue free)
13:28
Building my own "Dubai Lamps"
17:45
4.7W insect zapper from Lidl - test, teardown, experiments
11:29
Another IMRC module repair - tricky this time
6:54
ZK-S4: Single 200AH LiFePO4 Cell Boost Converter for Portable Light Station and USB Charger
17:59
Retro emergency light (with schematic and waveforms)
12:49
What's inside a SYNCHROSCOPE and how does it work
10:51