技术参数：

Technical Specifications: 
Working Wavelength (nm) 632.8 
Mode(TEM) 00（SingleMode） 
Working Current（mA） 5 
Output Power(mW) ≥2 
Beam Diameter(1/e2mm) ≤1.3 
Beam Light divergence(mrad) ≤1.3 
Power Stability <±5%/h 
Input Voltage 220V AC 50Hz 
Output Voltage(max) 7KV 
Light beam Altitude Lowest: 280mm; Highest: 400mm （made on request） 
Pitching Angle ±15° 
Model: RSHN-450 is available for Singlemode output power: 5mW. Also its laser tube length is bigger 
than 250 type, other specifications are the same.