Excuse for machine translation!

The ruler is the printed-circuit board with light-emitting diodes. The minimum ruler (block) is a triad of light-emitting diodes is calculated on pressure of a food of 12 volt. The quantity of blocks in a ruler can be from one to twelve pieces. Light-emitting diodes in a ruler can be different: white with any color temperature, color, a different corner of radiation of light-emitting diodes.

Light-emitting diode rulers can be used for decorative and advertizing illumination, design and technical creativity. Probably and other application of rulers where light with application of advantages of light-emitting diodes is required.  Read more…