Product purpose: Lighting Device for Physics Optics Experiment that intuitively demonstrates the principles of light reflection and refraction to support engaging optics learning. Material and build: Constructed from ABS plastic for durable classroom use and reliable performance during experiments. Educational value: Enables handson exploration of optical phenomena, helping teachers and students clarify and visualize how light behaves in real situations. Practical design: Simple setup that supports repeatable observations, making it suitable for classroom demonstrations and interactive learning activities. Key benefits: Facilitates immediate, visual understanding of reflection and refraction; enhances student engagement through practical application; aids in explaining abstract concepts with tangible experiments. Use scenarios Classroom demonstration: A teacher sets up the device to show how incident light splits into reflected and refracted rays as angles change, reinforcing core concepts in optics. Science fair exhibit: An interactive display where participants adjust angles and observe changes in light paths to illustrate optical phenomena to peers and judges. Home or independent study: Students or curious learners perform guided experiments to explore light behavior outside formal class time, using a compact and safe setup.