Computers; Electric monitoring apparatus; Light emitting diodes; Chargers for electric batteries; Triodes; Portable telephones; Electronic notice boards; Lighting ballasts; Electric switches; Electric light dimmers; Burglar alarms; Integrated circuit chips; Signalling devices, namely, traffic-light apparatus; Sleeves for laptops; Voltage stabilizing power supply; Video screens; Electric batteries; Fluorescent screens; Cabinets for loudspeakers; Neon signs