The StellarNet SL1-CAL Tungsten Halogen Calibration Lamps have a wide spectral Range for 350-2500nm – with spectral calibration data provided from 300-1100nm or extended 300-1700nm options (NIR is not included - please email contactus@stellarnet.us for quote). Extensive Life – The SL1 has a 10,000 hour Tungsten Halogen lamp filled with Krypton gas High Output Power – 200 W/m^2 and 2800K color temperature for many types of spectroscopy applications Great Compatibility/Versatility – manipulate output with color-enhancing or signal-attenuating filters. Miniature Size – Its small size of only 1.5” x 3” x 3.5” makes it a perfect match for our compact spectrometers. A small footprint makes this a great lamp for bench top applications. Portability – The small enclosure and low power consumption provides the ultimate VIS-NIR light source for portability. 12VDC power requirements easily allow you to run off our battery pack accessories for hours of field work. Technical Specifications SL1-CAL VIS-NIR Light Source Weight: 0.62 lbs (280g) Output to bulb: 5VDC Power consumption: 12 watts Output regulation: 0.2% Spectral Range: 350 – 2500nm External filter accessory: Demountable Time to stabilize: 1 min External filter holder: 0.5″ diameter filters SL1-Filter only Power output: 200 Watts /m2 Bulb Life: +10,000hrs Bulb Color Temp: 2800K Connector: 1/2" Nosecone and/or SMA-905 **All light source pricing includes power supply and 30% surcharge accessories purchased without spectrometer instrumentation**