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Solar-Powered Motion Lights For Home Security
Solar motion lights supply an effective way of providing light to certain areas and improving the security of your property. They comprise a passive infrared motion detector, joined to a rechargeable (normally LED) light.
Excellent for backyards, paths, driveways, sheds and garages, solar motion lights need no external source of power or maintenance and should carry on working for many months before they have to be replaced. Not having to wire this kind of light to a power source means installing them is incredibly straightforward - you simply attach the light, together with its associated solar panel and motion detector, to a suitable post or wall and that's it!
Solar motion sensing lights typically utilize an array of powerful LED lights to provide their illumination. LEDs are normally used because they use minimal power and will last for many thousands of hours without needing to be replaced. It is normal to see lights utilizing a group of up to 100 separate LEDs. 40 LEDs will produce around the same light as a 12 watt halogen bulb. They're also very safe, as no high voltages are required, and the LEDs generate no appreciable heat. If you want more powerful illumination, it's easy to simply add more lights.
Almost all solar motion lights utilize a separate solar panel to produce the power to charge the batteries contained in the light. Since it's separate from the other parts of the device, this means that you can locate it in the best place to get maximum sun - consequently you are able to mount the actual light in a dimly lit area without problems. Even though the majority of units are meant to be installed high up on buildings, etc., a number are offered which employ posts which can be driven into the soil, providing a lower-level light.
PIRs (passive infrared detectors) are the normal means utilized by solar motion lights to sense movement. It is possible to position the sensor so that it points to the most appropriate area. The majority of sensors feature a 180 field of view, and will detect movement out to at least 30 feet.
Quality designs will permit you to set both the duration of illumination after the light is activated, and also the distance at which movements is going to be detected. They'll also only switch themselves on when a specific level of darkness is reached, so as to avoid unnecessarily discharging the battery in during daytime.
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