1 Power Saver Scam EXPOSED!
Mehdi Sadaghdar opens a plug-in electricity saving box and shows why it cannot cut a household bill; the standard link whenever someone asks whether these devices work.
Topic
mains
10 videos. Ranked by independent recommendations, not by views.
2 Electrical Arc Flash Demonstration
Footage of an arc flash in an industrial panel, linked to show why high-energy mains equipment is best left to qualified people.
3 Why Cheap LED Lights Keep Glowing
ElectroBOOM explains why cheap LED lamps glow faintly when switched off, through stray capacitance in the wiring, and shows a resistor fix across the rectifier output.
4 Using LEDs as mains indicator lights on 120V and 230V (live demos)
Big Clive demonstrates several ways to run an LED as a mains indicator on 120 V and 230 V, recommended when resistor-only circuits overheat or reverse voltage harms the LED.
5 The most deadly project on the Internet
Big Clive's warning about microwave oven transformers, shared to make clear how easily these projects injure or kill.
6 Inside Fluke - The Measure of Innovation 2015 - Pt 1
A Fluke sales video testing several multimeters, almost always linked at one timestamp as a caution against buying too cheap a meter.
7 EEVblog #94 - Near Death Multimeter Experience
A cautionary tale about a multimeter failing on mains voltage, shared to stress why meter input protection and ratings matter.
8 Perhaps the weakest link in the US electrical system
Technology Connections argues the US mains plug and socket is a weak point in the electrical system; cited in discussions of extension lead ratings and why appliances forbid them.
9 Poundland 6W LED lamp teardown with schematic.
Big Clive's teardown of a mains LED lamp, cited to show how the bulb's driver and LED string are arranged and what voltages the LEDs run at.
10 Sudden science - driving fluorescent tubes properly.
Linked as a good explainer on electronic ballasts for fluorescent style tubes, consulted by people puzzling over how ballast power ratings add up.
