| 摘要 |
The current subject matter relates to a lighting device that can be installed in an already existing fixture in a structure. The lighting device can include a light emitting diode (LED) lighting segment and a fluorescent lighting segment. The LED lighting segment can include a LED lighting source, and the fluorescent lighting segment can include a fluorescent lighting source. The LED lighting source can be activated. Motion sensors and/or occupancy sensors can detect motion and/or occupancy of an occupant in the structure. If there is motion or if the occupancy is more than a predetermined threshold, the fluorescent lighting source can be activated. After each regular interval of time, the detection of motion or occupancy can be re-performed. If there is no detection of motion and/or occupancy, the fluorescent lighting source can be deactivated, after a period of time. Related apparatus, systems, techniques and articles are also described.
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