The roofed Den's often have downward LED lighting incorporated with PIR (Passive Infraed Sensor) motion sensors turning the lights on or off.
What are they?
Motion detectors are small electronic sensors or ‘eyes’ that detect infrared waves or heat waves that radiate from moving objects. When the detector or eye senses an object moving across its field of view, especially warmer objects such as people it electronically turns on the lights. So when nobody is using the den the light remains off saving electricity, energy and money.
How long do the lights stay on for, when do they go out?
The timers are set prior to installation. Once activated by human movement the lights will stay on for 30 minutes before turning off (provided there is no further movement). The sensor detects movement up to 3m away from the booth, so if the lights are on and no ones in the Den the sensor is detecting someone.
If you wish this time out period to be shorter please tell us prior to installation.
PIR’s are a great way to save energy when occasionally forget to turn lights off, but if they are not for you we can swap them out for a traditional light switch (not your standard plastic white one!) at no extra charge.