Abstract: An adapter, particularly for adapting light emitting diodes to commercial lamp-holders, comprising a printed circuit for driving light emitting diodes; the printed circuit has, along its longer sides, engagement elements with a complementary thread of a lamp-holder and, along one of its shorter sides, elastic elements for contact with a lower electric power supply region of the lamp-holder.

Abstract: A generator (10) of electromagnetic waves for medical use for personal physical and psychological wellbeing, generating a succession of electromagnetic waves, at least one oscillating circuit (12; 15a-15g) to generate one or more wave harmonics from one or more oscillating waves at one or more fundamental pre-determined frequencies, as well as a control device for mixing the waves and an emitter (14) for emitting the waves into a room which can be occupied by one or more users; each wave generated by mixing of said waves is made up of the sum of a series of fifth, ninth, thirteenth, seventeenth, twenty first, twenty fifth and twenty ninth order harmonics with respect to a fundamental frequency.

Abstract: A generator (10) of electromagnetic waves for medical use for personal physical and psychological wellbeing, comprises means for generating a succession of electromagnetic waves, at least one oscillating circuit (12; 15a-15g) to generate one or more wave harmonics from one or more oscillating waves at one or more fundamental pre-determined frequencies, as well as control means for mixing the said waves and means (14) for emitting the waves into a room which can be occupied by one or more users; each wave generated by mixing of said waves is made up of the sum of a series of fifth, ninth, thirteenth, seventeenth, twenty first, twenty fifth and twenty ninth order harmonics with respect to a fundamental frequency.