Passive infrared detectors; Telecopying equipment; Telephone apparatus and receivers; Optical lamps; Safety equipment, namely, beacon lights; Electrical outlets; Camcorders; Power switches; Digital projectors; Flash bulbs; Alarm monitoring systems; Neon signs; Webcams; Security surveillance robots; Video phones; Electric door bells; Telepresence robots; Security cameras; Video surveillance cameras for vehicles; Supervisory switches for fire suppression systems