The 2.5v / 0.3A miniature replacement bulbs are indispensable tools for educational electrical experiments. ideal for young students, these mini lamps bulbs are used to demonstrate how electricity flows through a circuit. Simply screw the bulb into a compatible socket, connect it to a power source, and observe the illumination. These bulbs are great for classroom experiments, helping students grasp of electrical circuits through practical application. Features -Color:Multi -Material:Glass,alloy -Size:2.00X1.00X1.00cm/0.79X0.39X0.39in -Designed for educational purposes: these mini indicator bulbs are specifically designed for educational purposes, making them an excellent choice for student experiments and projects -Low power requirements: operating at 2.5v and 0.3a, these bulbs are ideal for lowpower applications, ensuring safe and efficient use in educational settings -Safe and endure: constructed from glass and alloy materials, these bulbs offer reliable performance and durability, making them suitable for repeated use -Easy to use and transport: their small size and screw base design make these bulbs easy to install, replace, and transport, providing convenience for students and teachers -Ensures safe experimentation: these bulbs are designed to provide environment for electrical experiments, allowing students to learn and explore without any safety risks Package list: miniature screw light bulbs