LEDDownlightRc-HZdim-Adapter-175-200 (Opple Item Code: 140060651) Adapter ring accessory for mounting luminaires that require a Ø173mm cut-out, in an existing Ø200mm cut-out. The ring has an outer diameter of Ø225mm. Type of accessory/spare part: Adapter; Colour: White; Material: Steel; Length: 225mm; Width: 225mm; Height: 0.8mm; Diameter: 225mm; Accessory: Yes;