Industrial Infra-Red (not visible by eye) Laser Diode Micro Module System. The WORLD`S SMALLEST LASER MODULE at 6.4mm dia. X 8.8mm long, smaller than a 22 caliber bullet. Comes with adjustable focus plastic lens, brass housing, flying leads or spring, sealed with thermal conductive epoxy.. Features: complete with APC circuit; adjustable collimating plastic lens; brass housing; 5mW supply voltage; thermal conductive epoxy sealed; 1ns Laser Diode Rise Time, 2ns Laser Diode Fall Time. Use for line generation, alignment fixtures, medical applications, gun sights, pointing devices, targeting and aiming, leveling, machine alignment, laser light shows, laser R&D, custom housings, laser configurations and turnkey systems. Optic Output: 5mW, Wavelength: 850nm(±10). For more information see  [link removed]   ***Please remember do not let anyone look directly at a laser's output without eye protection as it can be harmful***