With just one OSG you can freely select any desired wavelength in 1 nm steps with wavelength tuning at 50 nm per second. Product lineup gives a light emission spectrum ranging from 340 to 540 nm, 390 to 700 nm and 430 to 790 nm as a standard product feature. Emits light at any desired wavelength with high reproducibility by delivering a spectral bandwidth of approximately 20 nm. This featuremakes the OSG the ideal light source for evaluations and tests that demand higher accuracy than ever.