This Weibull++ Quick Start Guide models the use of a Degradation vs. Time plot to see how the luminosity of the lamps degrades over time and estimate metrics such as: average lamp life, B10 life, reliability for 200 hours of operation, the number of lamps (out of 1,000) that can be expected to fail after 200 hours, and warranty time if you do not want failures during the warranty period to exceed 2%. Learn more about Weibull++: https://www.reliasoft.com/products/reliability-analysis/weibull