作者: Nikunj Shah
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摘要: An emergency lighting system includes a unit having battery which is kept in charged condition the presence of voltage on power line to connected. Upon loss voltage, caused discharge into pair flood lamps provide illumination an area surrounding unit. To for periodic testing without requiring user actuate switch radio frequency receiver responds signals generated by hand-held transmitter actuated user. A two stage charging circuit and low lamp cut-off are included improved life.