Softwares: DAZ Studio 4 With IRAY
License: This is licensed for commercial or non-commercial use.
db Nobel Gas Lights - Xenon - This is a 6' tube for DAZ iRay that simulates a xenon light in the color it transmits. The cool thing about xenon is produces a light very similar to sunlight.
there is a readme file in the zip file that explains more and also details using it commercially. Copy the data and light folders to your My DAZ Library to merge it with your exiting files.