Ideal for educational and practical uses, these small light bulbs are designed with an screw base for easy installation. They offer bright illumination, making them suitable for student experiments and flashlight use. Their compact design ensures they can be used in various small-scale projects, providing reliable and efficient lighting. Features -Color:Silver -Material:Iron Glass -Size:2.30X1.00X1.00cm/0.90X0.39X0.39in -brightness: these tiny light bulbs provide excellent brightness, making them ideal for various lighting needs -Low voltage operation: operating at 2.5v, these bulbs are safe and reliable, Suit for student experiments and other lowpower applications -Easy to install: featuring an screw base, these bulbs can be quickly and easily installed or removed as needed -durability: made with precision and Iron Glass materials, these bulbs are designed to last, reducing the need for frequent replacements -Versatile usage: these bulbs are Suit for use in small gadgets, flashlights, and other devices, offering great flexibility Package list: 50 x small light bulbs