| 摘要 |
A lighting unit with discharge lamps, particularly for spotlights and the like, comprising a discharge lamp (2) inside a containment enclosure (3) and ventilation elements (10) for cooling the lamp (2), a control unit (20) that drives a lamp power supply (25) to supply variable power levels to the lamp (2) and a fan power supply (21) for actuating the ventilation elements (10) at a variable speed. The control unit (20) is controlled by signals (27) imparted from outside and/or by signals (28) that can be derived from measurements taken inside the lighting unit (1). <IMAGE> |
