The P569  is a Corner LED Channel compatible with LED Strips up-to 12mm (0.47”) wide

Type:           LED Channel
Material:   Aluminum 6063-T5
Surface:     Natural Anodised 
Height:       17.70mm / 0.69″
Width:        17.70mm / 0.69″

Length Availability 
4ft (Actual Size 47”) / 1.20m
8ft (Actual Size 94.5”) / 2.40m
10ft (Actual Size 118”) / 3.00m
Custom Lengths up to 3.05m / 10ft