This is a complete, 'plug-and-play' Pavillion Integration WhisperIT WCP638-120FS Laser System. We've fully tested this system and guarantee that it meets the manufacturer's specifications. This system produces >120mW CW output at the wavelength of 638nm (see video and photos). This laser produces a high quality, ultra-low noise laser beam . Made for fluorescence microscopy, confocal microscopy, flow cytometry, DNA sequencing, medical imaging and other applications that require a high quality, low-noise beam.