Abstract: A portable lighting apparatus comprising a re-chargable battery and a plurality of LED's (light emitting diode) located on a PCB are housed in separate enclosures. The battery is managed by a first microprocessor in the battery enclosure and operation of the LED(s) is managed by a second microprocessor in the lamp enclosure. The two microprocessors are connected to respective data transmitters which generate signals to pass information and/or commands between the two microprocessors. The electrical systems of the two enclosures are interconnected by a bi-direction data link formed by a twin core cable.

Abstract: A lighting module, particularly for a portable lamp, includes an array of light emitting diodes (LEDs), and a transparent cover arranged in front of the LEDs, the cover has a plurality of lenses on the inner surface thereof providing a respective lens in the light emission field of each LED, and a diffuser screen is positioned between the LEDs and the cover and can be moved linearly across LEDs so as to diffuse the light emission from at least some of the array or all of the array as is desired. The diffuser screen comprises a flexible polymeric material which is stored around a roller located to one side of the cover.