Light-emitting diodes, in particular light-emitting diodes being lined up on a band and electrically connected as preconfigured electronic component; [accumulators;] electric cables; circuit boards[, optical fibers]; optical lamps, namely, optical readers;[ frames specifically adapted for photographic transparencies and illuminated electronic signs]; electric switches; electric power supply units, in particular low voltage power supplies; light-emitting diodes for illumination, in particular ...