Transformerless power supplies are showing up a lot here on Hackaday ... encounter one someday because they’re in everything from LED lightbulbs to IoT WiFi switches. We’re going to look ...

Even if your electricity is clean, a bad installation could yield the same effects as dirty power. Old, dirty sockets won't ...

We provide LED modules and its controllers; customized LED sign, Power supply and others related products in the sign industry. Our products are UL and CE approved. JS Led Power Inc. develops and ...

and that’s exactly what [Trammell Hudson] has done with his resource page for hacking the IKEA TRÅDFRI LED power supply with wireless interface. Schematic teardown, custom firmware images ...