This small lamp base with a screw fitting is great for various lighting needs and electrical experiments. Its compact design makes it ideal for use in tight spaces, while the sturdy construction ensures durability. The lamp holder is suitable for small bulbs, providing a reliable and secure connection for your lighting projects. Features -Color:Black -Material:Plastic -Size:3.00X3.00X2.00cm/1.18X1.18X0.79in -Note: -Bulb holder: ensures stable electrical experiments and enhances accuracy, making it ideal for education and professional settings -Light bulb base: suitable for various physical experiments, easy to carry and install, providing convenience in different scenarios -Screw base: compatible with E10 small bulbs, expanding the range of experimental materials and applications -great material: extends the lifespan of the product, reducing the inconvenience of frequent replacements and ensuring longterm use -Easy operation: simplifies the preparation process for experiments, making teaching and learning efficient and effective Package list: 20 x experimental lamp holder