LightingWill LED Aluminum Profile/ Channel 6-Pack 3.3ft/1Meter Silver U-Shape LED Diffuser with Milky White Cover, End Caps and Mounting Clips Aluminum Extrusion for LED Strip Lights U02 : Amazon.co.uk: Lighting
National Lighting | Aluminium 2m plaster-in extrusion profile kit to fit LED tape in anodised silver with opal diffuser | National Lighting® Online Shop