This power supply has been specifically designed for the highly stable 75W Hg lamp used inside the new SPS-300 Terahertz FTIR Spectrometer. A mandatory arc igniter (500-IG-75ST) is required and must be purchased separately. This is a new product currently being developed. The '500-75ST' is an adjustable, current regulated, DC Power Supply. It is meant to power up a low pressure, long arc Hg lamp by Heraeus Model 75St. However, it can be used by many other applications which require a steady, low noise current regulated Power Supply of up to 1A, and approximately 100W. It will work with the new 800V igniter to ignite the Hereaus 75St lamp.