A contour profile is an edge/zone perimeter line — often contour light, bypass, edge accent. It is not an INVISIA shadow gap and not a light line in the field (LIGHTRA).
Alumineu series: CONTURA (including X601). Membrane fixing and geometry only from the PDP. EN AW-6063 T5; B2B, warehouse Poland. No invented millimetres.
CONTURA ≠ CLASSIX ≠ FLOATIA ≠ LIGHTRA. Systems: `stretch-ceiling-systems-intro`. Classic wall: `classic-wall-finish`. Line vs LED gap: `light-line-vs-led-shadow-gap`.
No prices in prose.
### FAQ
CONTURA or LIGHTRA? Edge contour vs line in the ceiling field — compare product cards.
Separate diffuser? Only if the SKU kit requires it.
