JW3111 optical light source 1.Multi wavelength outputaa 2.Adjustable outputaa power 3.Tone generation, 270HZ,330HZ, JW3111 optical light source Features JW3111 optical light source Is a handheld optical light source, newly released in 2007. It can provide 1 to 6 wavelengths output to satisfy specific requirements including the 650nm visible light source and the 1310/1550nm wavelengths for single ...