PENMAG is our surface or pendant heat sink for our magnet system, available in various sizes and finishes to suit any lighting project. Ref. 7IM20210-01. Black Ref. 7IM20210-90. Techncial White Ref. 7IM20215-01. Black Ref. 7IM20215-90. Techncial White Ref. 7IM20220-01. Black Ref. 7IM20220-90. Techncial White