Abstract: The object of the present invention is to provide a light source (101) for a luminaire or lantern, the light source (101) comprising: at least one light emitting diode (LED), a mantle structure (112) with which the LED (101) is fast within the mantle structure (112), the mantle structure (112) being both transparent or at least translucent and arranged to intercept and re-distribute light from the LED and, an optical element (117) in the mantle structure (112) for biasing light from the LED (101) away from a direction in which illumination is unwanted or at least is wanted at reduced intensity. The optical element (117) is angularly adjustable such that the light emitted may be directed.

Abstract: The object of the present invention is to provide a light source (101) for a luminaire or lantern, the light source (101) comprising: at least one light emitting diode (LED), a mantle structure (112) with which the LED (101) is fast within the mantle structure (112), the mantle structure (112) being both transparent or at least translucent and arranged to intercept and re-distribute light from the LED and, an optical element (117) in the mantle structure (112) for biasing light from the LED (101) away from a direction in which illumination is unwanted or at least is wanted at reduced intensity. The optical element (117) is angularly adjustable such that the light emitted may be directed.

Abstract: A street light has a hollow standard having a lower end and an upper end. The standard is root mounted at its lower end and supports a lamp and a solar panel. An illumination circuit is mounted in the base compartment and connects a battery to the lamp for control of the lamp. A charging circuit connects the battery to the solar panel and to an electricity connection for charging. A control circuit inside the base compartment controls the brightness. The electricity connection extends from the root portion of the standard for connection of the light to an AC electricity supply. The charging circuit is programmed to connect the battery to the electricity supply at low electricity tariff times and to disconnect the battery from the mains before high electricity tariff times. The charging circuit is programmed to connect the battery to the solar panel for charging during daylight.

Abstract: A street light has a hollow standard having a lower end and an upper end. The standard is root mounted at its lower end and supports a lamp and a solar panel. An illumination circuit is mounted in the base compartment and connects a battery to the lamp for control of the lamp. A charging circuit connects the battery to the solar panel and to an electricity connection for charging. A control circuit inside the base compartment controls the brightness. The electricity connection extends from the root portion of the standard for connection of the light to an AC electricity supply. The charging circuit is programmed to connect the battery to the electricity supply at low electricity tariff times and to disconnect the battery from the mains before high electricity tariff times. The charging circuit is programmed to connect the battery to the solar panel for charging during daylight.

Abstract: A reactor (100) for the plasma assisted processing of a gaseous medium, including a cylindrical bed (106) of active material (107) contained between two concentric electrodes (108, 109), both of which are earthed and with a third cylindrical electrode (111) concentric with the other electrodes positioned within the bed of active material (107) and connected to a high voltage input terminal (112).

Abstract: A reactor for the plasma-assisted processing of gaseous media comprising a reactor chamber including a gas permeable bed of active material, a power source for applying across the bed of active material a potential sufficient to establish a plasma in a gaseous medium flowing through the bed of active material and a chamber having an inlet stub and an outlet stub for constraining the gaseous medium to flow through the bed of active material, wherein the bed of active material comprises a matrix of beads of a dielectric material having an assembly of regular arrays of beads in each of which adjacent beads are connected to a high voltage input terminal or an electrical ground.

Abstract: A reactor (100) for the plasma assisted treatment of effluent gases such as exhaust from internal combustion engines, and effluent gases from industrial processes and incineration. The reactor includes a stage for the plasma-assisted processing of noxious components in the effluent, such as carbonaceous combustion products from internal combustion engines. A diverter valve (119) is provided for bypassing at least that stage should it become blocked, for example by untreated carbonaceous combustion products. In a particular form of the reactor the treatment stages are modular in form.

Abstract: A reactor for the processing of gaseous media, including two planar beds of active material separated by a gap. A gaseous medium to be processed is fed inwardly around the periphery of the reactor beds into the gap between the reactor beds and collected from their outer surfaces.