It's for science projects and educational demonstrations, this mini light bulb is designed to fit seamlessly into various experimental setups. Its screw base ensures easy installation, while its bright light output provides clear visibility for conducting experiments. This versatile bulb is an essential tool for anyone interested in exploring the principles of electricity and physics. Features -Color:Transparent -Material:Glass -Size:2.00X1.00X1.00cm/0.79X0.39X0.39in -Consistent performance: the 2.5v 0.3a rating ensures consistent performance for vintage flashlights and educational experiments, providing reliable lighting -Easy installation: featuring a screw base, these to replace and install, ensuring a userfriendly experience -Wide range of applications: suitable for physics experiments, camping, outdoor activities, and home lighting, these bulbs are highly versatile -Lightweight design: the compact and lightweight design makes these bulbs easy to transport and store, for various settings -Educational use: these bulbs are ideal for conducting physics experiments, offering a learning experience for students and enthusiasts Package list: 12 x Miniature Screw Base Light Bulbs