Easy- Snap Fit Diffuser. Paintable Extrusion for Discreet Uplighting. Available in 1m or 2m LengthsExternal Cross Section: 42 x 17mm Internal Cross Section: 12 x 5mm Diffuser Visible Width: 14mm. Extruded aluminium curved profile for LED tape installation. Supplied with clip in diffuser- end caps and clips for mounting onto walls. The aluminium can be painted to match the surrounding decor to produce a concealed up lighter.. led strip profile-led strip fixing-led tape profile