LED Channel Letters The attached picture is of LED channel letters. These letters say, OsteoStrong, and are attached to a raceway. We first cut the faces of the letters out of acrylic on our CNC router. Than we bent the metal around each face & attached the back. We painted the raceway to match the building color. You can see these letters at 23601 Moulton Parkway in Laguna Hills. You should check them out! We are 3-D Signs manufacture signs like this LED channel letter sign along with many other types of signs such as banners, lobby sign, vehicles wraps, wind flags, window vinyl, routed HDU foam sign and much more. Call us at 949-770-9252 if you have any questions. The staff is very knowledgeable and always ready to help. Or email us at 3-dsigns@sbcglobal.net.