<![CDATA[This study aims to examine the implementation of a project-based learning (PjBL) model supported by a prototype to improve students’ practical skills in electrical lighting installation among Grade XI students in the Electrical Power Installation Engineering (TKL) program at SMK Negeri 2 Mandau. The learning intervention integrates theoretical knowledge with hands-on practice through a mini-house electrical installation project. This study employed a quasi-experimental approach using a one-shot case study design involving 37 students enrolled in the 2024/2025 academic year. Data were collected following the implementation of the learning intervention to assess students’ practical skills. The results indicated an increase in students’ practical skills scores following the implementation of prototype-assisted PjBL. These findings suggest that integrating project-based learning with a practical installation prototype can support the development of students’ technical competencies by providing opportunities to apply theoretical concepts in authentic learning tasks. This approach may also help prepare students to perform electrical installation tasks more independently. However, because the study employed a one-shot case study design without a control group or pre-intervention measurement, the observed results should be interpreted cautiously, and the effectiveness of the intervention cannot be conclusively attributed to the learning model alone.]]>
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