Perfect for backyards, paths, driveways, sheds and garages, these lights require no external power source or maintenance and should last for a very long time before they need to be replaced. Not having to wire these lights to a power source makes installation extremely easy – you just need to affix the light, together with its accompanying solar panel and motion detector, to a suitable wall or post and you’re done!
Solar Motion Lights – The Light Source
Solar motion lights generally use an array of bright LED lights to provide their illumination. This is because they use very little power and last for many years without having to be replaced. It is normal to find lights using a cluster of between 25 and 80 separate LEDs. 40 LEDs produce roughly the same light output as a 12 watt halogen bulb. They are also very safe since no high voltages are needed, and the lights produce no appreciable heat.
Solar Motion Lights – The Power Source
The majority of solar motion lights use a detachable solar panel to provide the power to charge the rechargeable batteries contained in the unit. The fact that it’s separate from the other components of the light allows you to position it in the best place to receive maximum sunlight – this means you can place the light itself in a shaded area without problems.
Solar Motion Lights – Motion Detection
Passive infrared detectors are the usual means employed by these lights to detect movement. You can position the sensor so it points to the most appropriate area. A 180 degree field of view is normal, with motion detection out to between 30 and 80 feet.
Good quality models will allow you to set both the duration of illumination when the light is triggered, and also the range at which motion will be detected.