速開速滅型燈光控制器 該控制器也用電腦芯片進行定時控制（同2的功能），也有光敏探頭作光敏控制，用繼電器作輸出控制，控制功率2～3kw。在定時時間范圍內，由光敏進行控制，適合于半開放式雞舍的燈光控制?？捎?、日光燈和節(jié)能燈。開燈時延時10秒鐘左右，以避免光敏的靈敏度過高使輸出繼電器抖動，使燈頻閃，了照明燈的使用壽命。另外該控制器內部安裝了充電電池，在電源斷電的情況下保持程序不變，也減少了更換電池的麻煩。 也有采用石英鐘或其它方式作定時控制的燈光控制器，有的就是簡單的定時控制，有的帶有光敏控制。但其控制方式基本相同。
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