These are new, hard sealed laser tubes for your OEM replacement or experimental needs. This assembly includes the laser tube mounted on a bracket with the ballast resistor and Alden high voltage connector inplace.
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
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.