IRVINE, Calif., Feb. 12 -- Toshiba America Electronic Components Inc. and its parent company, Toshiba Corp., announced that it is set to launch a white LED that points the way to a stable white light source with the luminosity required for future replacement for incandescent lamps. The new device was jointly developed with Toyoda Gosei Co. Ltd. and the two companies will commercialize and market it independently. Samples will be available in April and mass production will start from November. The new LED integrates Toshiba's phosphors and packaging with Toyoda's LED, which achieves a short peak wavelength at approximately 380 nm. The diode will be manufactured by Toyoda and packaged by Toshiba in a phosphor-mixed transparent resin package. Both companies will market the product under their own brand name.