VEVOR Laser Tube, 40W CO2 Laser Tube for Laser Engraver and Cutter Machine, 720 mm Length, 50 mm Diameter, Glass Laser Cutting Tube with TEM00 Beam Mode, for Wood Acrylic Fabric Leather BambooProduct Features Over 95% Transmittance Our laser tube features upgraded lenses that reduce impurity content and minimize heat absorption, achieving over 95% transmittance. This not only improves the laser's efficiency but also reduces operating costs, providing an economical solution for users. TEM00 Mode TEM00 mode features high beam concentration and energy density, ensuring a highly stable beam. Paired with the laser, our CO2 laser tube excels in