TECHNOLOGY FOCUS - ELECTRONICS - Preferred Component: The converted electrical energy is stored in at least one chargeable battery. An electronic circuitry (11) is provided for controlling the charging rate of the battery (19). The battery is remote from the outer body (12). The solar panel (7) is shaped (e.g., a pyramid, a diamond, a polyhedron or a hemi-sphere), such that its upper surface is parallel with its lower surface. It is positioned in an upper region of the outer body. The reflector has a surface comprising facets (24) or finishes to reflect the light along different angles. The array of light emitting diodes is contained in a thermally sealed and temperature controlled chamber (14). It comprises diodes arranged at different angles relative to the reflector. The light emitted by the array of light emitting diodes is transmitted directly to the reflector (22), or transmitted by fiber optic tails (15) to a distribution mechanism (21) before being directed at the reflector. The light emitting diodes are selected to produce chromatic wavelengths which are mixed to generate different colors and/or color temperature. The electronic circuitry is provided for controlling the chromatic wavelengths of light emitted from the luminaire. The heat regulating mechanism comprises a heat sink (30), a thermal chamber, a heat pump, and a conversion chamber. It converts heat energy into electrical energy for storage and subsequent use. The outer body also houses photo-sensitive cell(s); and light sensor(s). The photo-sensitive cell (10) provides information to the electronic circuitry. The light sensor (26) provides feedback information to the electronic circuitry. The information provided by the photo-sensitive cell is used by the circuitry for the activation and deactivation of the light emitting diodes during the day and night cycle, and/or to regulate the charging and discharging rates of the battery. The feedback information is used by the electronic circuitry to adjust power supplied to the light emitting diodes to achieve an electrical characteristic produced by the light sensor that matches pre-set characteristics known to give required lighting effects. The electronic circuitry is provided to transmit data relating to the operational status of the exterior luminaire to a computer for analysis and display.Preferred Material: The light diffusing material (16) comprises an internally patterned polycarbonate material.