The representation of the machine available to the population in general and then will be used to select samples for the steps and collect data in the system and then will be processed by software packages for social science research (Statistic. package for Social Science) for analysis and comparison of the statistically significant as Average (Mean) and Percentage (Percentage) will test the hypothesis in this study as t-test (Independent. Sample t-Test) to summarize the discussions and recommendations perceptual model relating ambient light condition and perception of privacy.