Features: The Electricity Experiment Device LED Light Emitting Diodes is designed to vividly demonstrate electrical principles with its multicolor LED light, sparking curiosity and enhancing learning experience. Featuring high brightness LED in multiple color, this LED light bulb is safe, and easy to operate, making it great for student, teacher and beginner exploring the basic of electricity and magnetism. Very suitable for school students, physics teachers, science enthusiasts, and educational institutions whyo seeks hands on learning tool. Widely used for classroom experiments, extracurricular activity, teaching demonstration, science exhibitions, and fun family learning activity, providing comprehensive understanding of electricity. This educational LED light emitting diodes electricity experiment equipment encourages exploration, fostering sense of accomplishment and inspiring lifelong passion for science and discovery. Specifications: Color: Green Component: PP; Metal Size: Approx. 6.5x3cm/2.55x1.18in Weight: Approx. 15g Package Includes: 1Piece Light Emitting Diode Experiment Device note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color