Wavelength (nm) 589±2 Output power (mW) >0.6, 1, 2, … , 5 Transverse mode TEM00 Operating mode CW Beam divergence, full angle (mrad) <1. 5 Beam diameter at the aperture (mm) ~1. 5 Switch Push button Surface color Black Power Consumption DC 3V Power supply 1×CR2 3V lithium battery Expected lifetime (hours) 5000 Warranty 6 months Remark LED indicator, key switch and logo engraving are on request.