Back when he was first starting out in electronics he built this infrared-controlled light switch that works with a standard TV remote control. [Vadim]’s first few projects ended up as parts for ...

What if your lamps could work smarter without you? If you're not using light timers yet, you're missing out on their amazing ...

A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops. Lights on, lights off. That's great for a small room with one entrance.

The position of switches in parallel circuit is important. If the switch is open, both lamps are off. When the switch is closed, both lamps are on. Figure caption, In a parallel circuit ...