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 05-LHP-122 Output Power: 2.0 mW minimum, 2.5 mW typical Wavelength: 632.8 nm RED Polarization: Linear polarized >500:1 Mode: TEMoo Beam Diameter: 0.80 mm Beam Divergence: 1.35 mRads. Light Exit: Cathode end of tube. Operating Voltage: 1400 VDC (1850 VDC with 75K ballast). Start Voltage: 10 KV. Operating Current: 6.5 mA Ideal Recommended Ballast Resistor: 75 K 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: 8.9″ (228mm) long x 1.45″ (36.8mm) diameter. Warranty: Limited 30 days from date of purchase.
