Abstract: The invention comprises a modular illumination system comprising at least one mounting strip; one or more emitter strips each having an outwardly directed face in use through which infra red light may be transmitted; one or more printed circuit boards each carrying a plurality of infra red light emitting diodes; and one or more contact elements. The system is such that the or each emitter strip can interconnect with a mounting strip to form a conduit through which a power supply bus may be carried. Each contact element is adapted to complete an electrical connection between the power supply bus and a printed circuit board mounted behind the outwardly directed face of the emitter strip. The system is easily assembled and is advantageously used to provide a source of covert illumination for security or other monitoring purposes.

Abstract: The invention comprises a modular illumination system comprising at least one mounting strip; one or more emitter strips each having an outwardly directed face in use through which infra red light may be transmitted; one or more printed circuit boards each carrying a plurality of infra red light emitting diodes; and one or more contact elements. The system is such that the or each emitter strip can interconnect with a mounting strip to form a conduit through which a power supply bus may be carried. Each contact element is adapted to complete an electrical connection between the power supply bus and a printed circuit board mounted behind the outwardly directed face of the emitter strip. The system is easily assembled and is advantageously used to provide a source of covert illumination for security or other monitoring purposes.