Aluminum--high quality Products Information:CL-9Dimension: Dia92mm, Cut-out74mm, Ring:68mm,Weight: 120g,Material: Pure Al,Suits for MR16/GU10/GX5.3, we supply only the lamps, without the base, if require for, pls info when you order.Products picuture detail:Halogen Lamp MR16/GU10:High power LED lamp MR16/GU10: COB LED LAMP MR16/GU10:The same stly one: Halogen lamp MR16/GU10:SMD LED LAMP MR16/GU10 ...