Specification: Style: U style.  Shell color: milky white, transparent.  Material: aluminum.  Length:30CM 50CM.  Width: 20MM.     Feature: The LED U-Shaped aluminum channel system provides a professional finish and a modern aesthetic to accommodate a wide range of LED strip lighting projects.  While the aluminum channel houses and protects your LED strips from dust and physical contact, the channel cover diffuses the harsh brightness of the LED lights themselves.  The cover softens the 'spottiness' of LED strip lights, rendering a light that is not only more consistent but pleasing (referred to as a "light bar" or "neon effect).  Because the adhesive backing on LED strip lights only permits one installation before losing its stickiness, housing them in LED drop aluminum channels instantly makes them portable. Find that perfect spot to illuminate without ever having to waste another LED strip light again.     Installation: Simply stick the LED strip light's adhesive backing inside the channel, snaps on the diffuser cover, and mount the channel whenever desired.  LED Shaped Aluminum Channels can be applied to surfaces (mounted or, if not required, unmounted), and can be embedded as well.  Additionally, you'll get two mounting clips (both steel) and 2 pcs end caps one pc channel, giving you more control and flexibility over your available mounting options and overall interior design.     Note: LED strip is not included.     Package included: 1 x 30cm/50cm aluminum case.  1 x PC cover.  2 x plastic end caps.  2 x wall hanging.  4 x screws