A red LED torch is essential for preserving your dark adapted vision at night allowing you to read star charts as well as setup and take down your accessories safely. The red wavelength is specific to ...

When Raj Patel looks down from an airplane, he doesn't see streetlamps dotting the ground. He sees potential business partners. Patel founded Ferndale-based Midwest Circuits, now a municipal LED ...

Evil Mad Scientist Labs brings us this easy to make LED blinking circuit. The idea is to put a LED in series with a small blinking incandescent bulb from a string of Christmas lights. The bulb has an ...

For advertising and promotion, light chaser circuits are used to produce lighting animation sequences to attract attention like the movie theater marquee. The device contains a lighting controller ...

Light-emitting diodes (LEDs) are often used with a voltage source from a power-supply output voltage. The output voltage increases until the current through the LEDs reaches the value of the ...