Product features &Technical Specification Item: CO2 Laser Diode Source (CR20Z) Description: Wavelength: 10.57-10.63um Output Power: 25W Power Stability: ± 5% Mode Quality: TEM00 Beam Diameter: 3.5mm Beam Divergence: 4mrad Polarization: 50: 1 Linear (Vertical) Frequency Modulation: 0-20kHz Cooling: Air Input Voltage / Current: 30VDC/14A External Dimensions: 122*100*453mm Note: Mode CR20Z CO2 Laser Diode Source is Folded cavity laser.