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Comparative analysis of the use of LED and HPS lights in PT. Bukit Asam

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In this study, they are using the lamp replacement method with the same lumen level comparison. The goal is that later the level of lighting produced is the same for each lamp. From the results of this study, it was found that the industrial use of 70W, 150W, 250W, and 400W HPS lamps have an efficacy level of 84 to 123 lm/W. | Comparative analysis of the use of LED and HPS lights in PT. Bukit Asam