Right, let's get straight to the point. This is a little eye-candy circuit which continuously cycles an RGB LED through the colours of the rainbow. The speed at which the colours change is adjustable.

LOS ANGELES—Quasar Science today released a new firmware update for its Double Rainbow and Rainbow 2 RGBX linear LED fixtures. Available as a free download, Firmware v0.7 offers new features and ...

Nanorod light-emitting diodes emit light across the entire visible spectrum using a single semiconductor compound. Light-emitting diodes (LEDs) of various colors are ubiquitous in daily life. As the ...