Stone for building and construction

Lighting control apparatus and software programs for controlling lighting systems; ballasts for lighting installations; light emitting diodes (leds), laser diodes and zener diodes; optical control apparatus and thermal control apparatus for controlling lighting sytstems; electronic circuits for lighting control systems and lighting management systems, namely, led modules in whole or in part consisting of integrated leds, oleds and/or polymer emitting diodes, for the purposes of lighting appar...