Instead of simply replacing the outdated bulb, we decided to build a small dark detecting circuit with 2 yellow LEDs based on this Evil Mad Scientist Laboratories design. After successfully ...

They look for all the world like any other LED, though embedded in the plastic dome is an integrated circuit to do all that flashing work. There was a time though when a flashing LED was something ...

NASA's Solar Dynamics Observatory captured a massive 'tornado' on the sun in multiple wavelengths. Unlike the Earth, ...

In a series circuit, the current passes from the power ... Taizhou Haoran Machinery sells machines that create LED holiday light strings. Here's how it works. First, the wire is fed into the ...

Suppose a manufacturer recommends a maximum voltage of \(2V\) across their LEDs and maximum current of \(10mA\). Using properties of a series circuit, the sum of the voltages across the LED and ...