The VIS Optical Switch from Laser Components is a Fiber Optic Switch with Insertion Loss 0.9 to 1.4 dB, Operating Temperature 0 to 60 Degree C, Optical Power Up to 1 W, Polarization Dependent Loss 0.05 dB, Storage Temperature -40 to 80 Degree C. More details for VIS Optical Switch can be seen below.