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- Go to the AMSEC website to research a company’s safe-opening instruction sheet, found under “Big Red Combination Instructions” or General Safe Warranty and Instructions” at the website: http://www.amsecusa.com
- Research how to get a combination lock open when the combination won’t work. Go to the “Safecracker at Large” blog athttp://safecrackeratlarge.blogspot.com/2009/01/how-to-dial-safe-combination.html for helpful tips
- Go to http://www.fullspectrumsolutions.com/cri_explained.htm to research the Color Rendition Index (CRI) and some of the common light sources’ color temperature and CRI values.