Adjustable Brightness: Customize the brightness of each color with ease, offering precise control over illumination levels for various applications. Versatile Color Display: Showcase red, green, and blue colors individually, as well as two-color and three-color mixed light options, providing a comprehensive visual experience. Ideal for Educational Use: Tailored for junior high school physics experiments, enabling students to engage in hands-on activities to demonstrate the principles of primary colors effectively. Simple and User-Friendly Design: Featuring a straightforward structure that enhances usability, making it an excellent tool for student experimentation and learning. Enhance Learning Experience: Elevate students' understanding of optical concepts through practical demonstrations using this equipment, fostering interactive and engaging educational experiences. Description: Enhance your optical experiments with the light test equipment. This versatile tool allows you to adjust the brightness of each color, including red, green, and blue, as well as various mixed color combinations. Perfect for junior high school physics students, it facilitates hands-on demonstrations of the three primary colors. With its simple structure and user-friendly design, this equipment is ideal for student experiments. Elevate your classroom experience with this essential optical group experiment tool. Item Name: Light Test Equipment Material: Plastic Features: Adjustable Brightness, Simple Operation, Portable Size Details: L: 12cm/4.72", W: 11cm/4.33", H: 8cm/3.15" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Light Test Instrument