Optic fiber adapter - LC are all plastic housing; There are simplex LC adapter and duplex LC adapter, usually duplex LC fiber adapter are with SC footprint. The LC fiber adapter colors are same as SC fiber optic adapter: Blue for single mode PC, beige for multi mode PC and green for single mode APC. LC fiber optic adapter are with bronze sleeve for multimode and zircon sleeve for single mode. Features: 1. Standard metal one-piece body, good interchangeability 2. Precision ceramic sleeve, low insertion loss 1. Applicable standard: YD/T826, YD/T896, IEC61754-13 Applications: 1. Optical fiber communication networks 2. Optical CATV 3. Instruments and meters