| 摘要 |
A lighting device that may be independent or may be one of a set that includes a plurality of lighting devices. The lighting device may be a Christmas tree-topper device, that may be placed on top of a supporting body, such as the top of a Christmas tree. The lighting device includes a light-emitting element and an electrical current source which is independent of an electrical network and supplies power to the light-emitting element. The lighting device may also include a housing that includes an upper housing portion extending upwardly towards an end at which the light-emitting element is situated, the housing also including a lower housing portion that supports the electrical current source. The lighting device may also include a sleeve for receiving the top of the supporting body, the sleeve having an opening at its bottom end. At least part of the sleeve may extend upwardly into the lower housing portion so as to improve the stability of the lighting device when the lighting device is supported by the top of the supporting body. A wireless transmitting device may be configured to turn on and off the light-emitting elements of each one of the plurality of lighting devices.
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