Specifications:
MFG / Model: Melles Griot 05-LHP-120-287 Output Power: 2.0 mW minimum 2.8 mW typical 3.9 mW maximum. Wavelength: 632.8 nm RED Polarization: linear / 500:1 Mode: TEMoo Beam Diameter: 0.59 mm Beam Divergence: 1.35 mRads Light Exit: Cathode end of tube. Operating Voltage: 2000 VDC Start Voltage: 10KV. Operating Current: 6.5 mA Recommended Power Supply: DG-22, E-21, LAB-S-22. Dimensions: 10.4 x 2 x 2 inches Warranty: Limited 30 days from date of purchase.