Fiber optic light sources are a necessity for performing optical fiber network testing to measure the optical fiberal loss for both single mode fiber cable and multimode fiber cables. They are designed to cover a variety of wavelength ranges to suit all optical testing needs and usually the optical light sources are used with the optical fiber power meter to test the fiber system loss. Light sources are offered in a variety of types including LED, halogen and laser. Usually the optical light source is used with the optical fiber power meters, they act as an economic and efficient solution for the optical fiber network works. Fiberinthebox offers handheld optical fiberal light source and laser light source. Welcome to our store. Contact us at sales@fiberinthebox.com or Live Chat with us. Buy other optical fiber products on Fiberinthebox. Save your money & time right now!