18mm CVD ZnSe Focal Focus Lens for Laser Engraver Cutter Focal Length:1.5 in. (38.1 mm) Spacious yet compact 1

Spacious yet compact 1

Input Voltage: 110V AC

3") long 50 mm (2") wide laser tube operates at 18kV and 4mA for engraving acrylic

Rotational Speed: 5800 rpm

being compatible with most CO2 engraving heads

18mm CVD ZnSe Focal Focus Lens for Laser Engraver Cutter Focal Length:1.5 in. (38.1 mm) Spacious yet compact 1Cutting Edge Features: HIGH QUALITY CVD ZnSe: OMTech's powerful focus lenses are manufactured from premium zinc selenium via chemical vapor deposition for superior optical properties. HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly antireflective coatings to achieve at least 99. 5% transmittance rate for infrared light at a wavelength of 10. 6 microns. LASTING DURABILITY: Our laser engraver focus lenses' double sided coating