This research aims to: (1) Develop energy-saving products through a project for making a series of garden lights, (2) Explain the increase in students' understanding after implementing PjBL integrated STEAM in making a project for a series of energy-saving garden lights. This research uses a quantitative approach with quantitative descriptive analysis methods. Data collection using test techniques, observation, documentation and project/product assessment methods. Data analysis using descriptive analysis. The results of the research show that students' physics learning achievement in the cognitive aspect has increased, according to the N-Gain criteria, it is in the high category (N Gain: 0.73). while the energy saving lamps in this study were lamp A (a combination of 5 watts, 5 watts, 20 watts and 30 watts).
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