Since 2005, Light Source 1 Communications Supplies, Inc. has provided Fiber optic supplies to Telecommunications and server-based companies . Light Source 1, Communications Supplies, Inc. is based in the heart of Los Angeles, CA in the One Wilshire Building. We have a retail store filled with fibers, cat5, cat6, tools, Cisco GBICS, 2 or 4post racks, ladder racks, raised floor and 19 inch racks. We are a convenience store to technicians in Los Angeles who perform work in downtown Los Angeles. Our customers can walk in and purchase what they need or we can deliver straight to your job site anywhere in the US!