The screw socket lamp base is a versatile experimental kit that can be used for physics experiments. Designed to help students understand the principles of electrical circuits. The small lamp base is made of plastic material, ensuring durability and reliability. Features -Color:Black -Material:Plastic -Size:3.00X3.00X2.00cm/1.18X1.18X0.79in -Socket: -Rated voltage range: Below 50V -This bulb holder provides students with a hands-on experience to explore electrical circuit concepts. -The sturdy construction of this bulb holder ensures performance and reliability. -The sleek color of this bulb holder adds a professional look to any laboratory or research facility. -The bulb holder is compact, allows for comfortable handling and easy installation. -This bulb holder is an for conducting physics experiments in classrooms, laboratories, or research facilities. Package list: 10 x bulb Holders