Md pd4-m-daa4g-p dali 4 zones, superstructure product description: Pd4-m-daa4g-p 92743 md luxomat pd4-m-daa4g-p to superstructure on ceiling - with 4 dali zones 1 potientialefri channel, 3 Low-voltage switches, Only one dali bus... Read throughout product description by to press on buy button.