Check 45° cabinet surface mounted led profile, you could use the LEDLUZ offers a large variety of high quality LED Strip Channels for cabinets, stairs, ceilings, closets, floors, walls, and even around corners.
ALP139
Low profile under cabinet led lighting
ALP002-RL
60 Degree Lens led ribbon profile
ALP006
V Shape LED Strip Aluminum Channel Diffuser System, Extruded Alu Track Milky Cover with Corner Connector and Mounting Kit ,Easy Cut and Installed Curved Lens Profile
ALP145
Aluminum led housing suppliers
ALP141
LED extruded profiles
