LED LIGHTING DEVICE AND A METHOD TO VERIFY ITS LIFESPAN
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United States of America Patent
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app pub date -
Apr 11, 2014
filing date -
Aug 16, 2012
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Abandoned
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Abstract
The present invention provides an LED lighting device and a method for verifying the device's lifespan. The LED lighting device includes multiple LED light sources, a controller configured to keep time for the LED lighting device's lifespan; a low voltage DC power source configured to supply power; a light intensity sensor configured to capture illuminance data; and a display terminal configured to display received data. Further, the controller records time keeping data based on the illuminance data captured by the light intensity sensor and sends the time keeping data to be displayed on the display terminal.
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