These are new, hard sealed laser tubes for your OEM, replacement, or experimental needs. Other types of tubes may be available. Please email us for more information. SPECIFICATIONS: Manufacture / Part Number: Melles Griot, model LGR120 Output Power: 150 uW typical, Wavelength: 543.5 nm GREEN Polarization: Random Mode: TEMoo Beam Diameter: 0.85 mm Beam Divergence: 1.2 mRads. Light Exit: Cathode end of tube. Operating Voltage: 1650 VDC (with 75K ballast). Start Voltage: 10KV. Operating Current Range: 4.0 -6.0mA , 5.0 mA Ideal. Recommended Ballast Resistor: 75K Ohms, 5 Watt. (Add in series to the anode lead within 3″ of the tube.) Recommended Power Supply: E-21, F-22, DG-22, LAB-S-22. Dimensions: 8.5″ long x 1.5″ diameter. Warranty: Limited 30 days from date of purchase.
