RS 260 Is a new released smart optical light source in year 2007.It can provide 1 to 4 wavelength output according to the specific requirements which includs the 650nm red source,1310/1550nm wavelength for the single mode fiber and 850/1300nm wavelength for the multimode fiber or other wavelengths according to customer needs. Together with RS180 smart optical power meter, it acts as a perfect solution for the fiber optic network work.