Blinkers signalling lights; light dimmers regulators, electric; electric light switches; beacon lamps; light-emitting electronic pointers; light sensitive relays; light sources (flashbulbs) for photographic purposes; light dimmers; light dimmers regulators, electric; light switches; light sensors; lighted signs; light probes; light probes for scientific purposes; luminous pointers; optical fibre cables; optical light beam deflectors; traffic-light apparatus signalling devices; LED indicators;...