Automatic Lawn Light Circuit of a compact and true solid-state automatic lawn light is described here. The circuit can be used to switch on incandescent garden light bulbs at desk and switch off them ...

Most of the PC desk lamps available in the market light up whenever there is an input power. These don’t take into account whether there is a real need for the light or not. Here is an intelligent PC ...

The heart of the rig is a normal filament-based flashlight bulb, which produces good-quality white light ... while an Arduino uses a light-dependent resistor to measure how much light makes it ...

It’s just a simple resistor divider, with a light bulb thrown in on one of its legs. When the current increases, this causes the light bulb to warm up (not enough to glow, though).