(1)If you have a older style downlight in your house that has a large cut-out size then you may need one of these.
(2)This is a expansion plate and is designed to fit perfectly into the Norming Lighting DL06-13BA 13W LED downlight range.
(3)It has an outer diameter of 140mm meaning that you can place it over an existing hole up to about 135mm.
(4)This allows for a clean and tidy fit so you can change your old incandescent downlights to new energy saving LED downlights.