AtomStack Kraft 40W Laser ModuleItem Details Brand Atom Stack Model KM40 Optical Output Power 3437W Material Aluminum 6063, Anodized Dimensions 107 78 140. 7 mm Wire XH2. 54 2PIN, 20AWG, UL3239 silicone wire, heat resistant up to 200, length 150 mm Optical Lens 8 mm fused quartz Fan 24V Laser Beam Mode Focused light Operating Mode Continuous Spot Size 0. 15 0. 15 mm Lifespan 8000 hours Operating Temperature 035