Features:
1.Light Aluminum Profile Kit is a great solution for low-cost DIY under cabinet lighting fixture.
2.It is designed for recessed/surface mounting to tie-in furniture, under cabinet,shelves, drywall, wooden partitions, etc., also can be activated to create decorative luminescent bands in the walls, ceiling, floor, lights, work surfaces, shelves, steps, niches. 
3.The Oyster/Opal white PC cover works well to help spread the light. This aluminum channel/profile works with LED flex/rigid strip lights (less than 12.15mm wide). 
4.This kit includes the channel, cover, end caps, and mounting clips needed for a complete aluminum channel installation. 
5.The cover softens the 'spottiness' of LED strip lights, producing a more consistent and pleasing light. This aluminum channel is extendable and sold by meter. You can add as many meters as you need and connect them together seamlessly. 

Specifications:
Configuration: U-Shape Channel: Extruded aluminum Diffuser: Oyster White Cover 
Height: 0.35inch (9mm) 
Inner Width: 0.48inch (12.15mm) 
Top Width: 0.91inch (23mm) 
Back Width: 0.67inch (16.9mm)
 

Compatible with strips whose PCB width within 12mm:

HK-F3528X30-X DC 12V Dimmable SMD3528-300 Flexible LED Strips 60 LEDs Per Meter 8mm Width 300lm Per Meter

HK-F3528X30-6MM-X Super Slim DC 12V Dimmable SMD3528-300 Flexible LED Strips 60 LEDs Per Meter 6mm Width 300lm Per Meter

HK-F3528X60-X DC 12V Dimmable SMD3528-600 Flexible LED Strips 120 LEDs Per Meter 8mm Width 600lm Per Meter

HK-F3528X30-X-HCRI High CRI > 90 DC 12V SMD3528-300 Flexible LED Strips 60 LEDs Per Meter 8mm Width 300lm Per Meter

HK-F5050X15-X DC 12V Dimmable SMD5050-150 Flexible LED Strips 30 LEDs Per Meter 10mm Width 450lm Per Meter

HK-F5050X30-X DC 12V Dimmable SMD5050-300 Flexible LED Strips 60 LEDs Per Meter 10mm Width 900lm Per Meter

HK-F5630X30-X DC 12V Dimmable SAMSUNG SMD5630-300 Flexible LED Strips 60 LEDs Per Meter 10mm Width 1200lm Per Meter

HK-F2835X30-X DC 12V Dimmable SMD2835-300 Flexible LED Strips 60 LEDs Per Meter 8mm Width 1000lm Per Meter

HK-F2835X30-X-HCRI High CRI > 90 DC 12V Dimmable SMD2835-300 Flexible LED Strips 60 LEDs Per Meter 8mm Width 1000lm Per Meter