| http://www.w3.org/ns/prov#value | - Since a single light-emitting diode has a low driving voltage such as about 1.6 to 1.8 volts in case of a red-light emitting gallium-aluminum arsenide (Gax Al1-x A5, wherein 0<x<1) diode, multiplication of such unit driving voltage is advantageous for the driving of the light-emitting diode circuit by a commercial power supply or like power source.
|
