An EFR laser tube refers to a type of laser tube manufactured by EFR Laser, a leading provider of laser technology solutions. EFR laser tubes are essential components in CO2 laser cutting and engraving systems, providing the energy source necessary for material processing. These tubes utilize a sealed gas mixture, typically consisting of carbon dioxide, nitrogen, and helium, excited by a high-voltage electrical discharge to produce a laser beam at a specific wavelength. EFR laser tubes are known for their reliability, longevity, and consistent performance, making them popular choices for industrial and commercial laser applications. They are available in various power ratings to accommodate different cutting and engraving requirements, offering versatility and precision in material processing tasks.