High quality 20mm ZnSe focus lens supporting as 180Watt without cooling needed
Better quality means 15~20% more power than the others!
Ideal for engraving
Type: Positive meniscus Focus Lens (imported material)
Laser type: 10600nm CO2
Cutting: Great for 3mm acrylic, 5mm wood
Suggest laser tube used: 80W or above
Swapped this lens out for a 50.8 lens to see if it improved the engravings I was doing on cork coasters and WOW! The detail and crispness is amazing. The 50.8 Lens was doing a very nice job but nothing compared to this lens. Running it on a Light Object full setup, tube, X-Y stage, power supply and 708/LO-X7 controller at 500mm/s at 11.5 on power. Great product, especially for engraving like the ad states.3/16/2016