Describir: Lighting developments exhibited at Photokina 1980 /

  _  _    __   __              ______    _____      ___      _  _    _    _   
 | \| ||  \ \\/ //     ___    /_   _//  / ____||   / _ \\   | \| || | || | || 
 |  ' ||   \ ` //     /   ||   -| ||-  / //---`'  / //\ \\  |  ' || | || | || 
 | .  ||    | ||     | [] ||   _| ||_  \ \\___   |  ___  || | .  || | \\_/ || 
 |_|\_||    |_||      \__ ||  /_____//  \_____|| |_||  |_|| |_|\_||  \____//  
 `-` -`     `-`'       -|_||  `-----`    `----`  `-`   `-`  `-` -`    `---`   
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