Describir: Lighting developments exhibited at Photokina 1980 /

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