I finally managed to get through (I did try earlier with no luck) and it turns out it is not there lights. They are Iranebeam 800 which are made by Strand (They are Ianiro copies) who I don't think exist any more. I also spoke to a glazier and they say as the glass is only 2mm thick it can not be heat treated/safty glass (whitch starts at 4mm).
Apparently the Ianrio ones have wire mesh not glass. I am going to do some research on how much heat glass can stand but think I simply need a standard 2mm/136mm glass disk.