|  | Absence DetectionAbsence detection requires somebody to physically switch the lighting on. Often a person will not switch lighting on because they feel the area is light enough. The energy saving has already started.
Also, lighting switches off automatically when the area has been vacated, saving even more energy to ensure lighting is not left on. |
| |
| | | | Active PhotocellKlik Occupancy Sensors also provide a further energy saving benefit. Where there is often natural light, the active photocell will save energy by switching lighting off, even if the area is occupied. When the natural light level falls below a set point, the lighting automatically comes back on. |
| |
|
