Designed for versatility, these mini light bulbs are suitable for educational purposes, such as science experiments and classroom demonstrations. Their reliable performance and consistent brightness make them an excellent tool for learning about electricity and circuits. The screw base ensures a secure fit in various devices, enhancing their usability. Features -Color:Transparent -Material:Glass -Size:2.30X1.00X1.00cm/0.90X0.39X0.39in -Bright illumination: ensures high brightness for clear visibility in dark environments, ideal for nighttime activities and outdoor adventures -Long lifespan: built to last, reducing the frequency of bulb changes and saving on replacement costs -Versatile voltage: voltage compatibility ensures it fits a wide range of flashlights, providing versatility and ease of use -Experiment ready: for physical experiments, offering safety and reliability for educational and research purposes -Convenient screw base: the screw base design makes installation and replacement quick, improving user experience Package list: 80 x flashlight bulb