Burglar alarms; Circuit breakers; Converters for electric plugs; Electric plugs; Electric light dimmers; Electrical connectors; Electrical switches; Electronic apparatus, namely, electronic display boards, plasma display boards, electronic display screens; Fire alarms; Fluorescent screens; Infrared detection apparatus; Integrated circuits; Inverters; Lighting ballasts; Patch panels for housing electrical connectors and switches; Power switches; Printed circuit boards (PCBs); Printed circuits;...