Features of the Newport/Oriel Model R-31004 Laser HeNe Rouge: 633 nm include: 

- Wavelength(s): 633 nm
- Beam Diameter: 0.57 to 0.98 mm
- Beam Divergence: 0.66 to 1.41 mrad
- Polarization: 500:1 or Random
- Beam Drift: < 0.05 or 0.2 mrad
- Noise: 1.0 or 5%
- Output Power: 0.5 to 35 mW
- Power Requirements: 115 VAC, 50/60 Hz
- Laser Head Size: 7.0 x 2.2 x 2.5 in.  (177.8 x 55.9 x 63.5mm)