Description The physics screw lamp holder and bulb kit is a great helper for students to learn electronic science by building different kinds of models, improving their hands-on ability, thinking ability, creativity, and awareness of electricity. Easy to operate, simple and convenient. Features - Color: Black. - Material: Plastic. - Size: 3.00X3.00X1.50cm/1.18X1.18X0.59inch. - Suitable Voltage: 1.5-220V. - Suitable Current: ≤2A. - Base: E10. - Package includes 5pcs lamp holders and 5pcs mini bulbs, which can meet your daily using needs and can share with friends. - By setting up simple circuits, it is easier for your child to learn basic electrical rules and improve your child's hands-on ability. - It is simple , but very practical in use, which brings great convenience to you. - These lightweight physics experiment equipment are perfect for physics demos and projects in school such as teaching basic principles of electricity or how a simple circuit works. - Adopts precision production to stable characteristics and high reliability. Package includes 5pcs lamp holders and 5pcs mini bulbs, which can meet your daily using needs and can share with friends. By setting up simple circuits, it is easier for your child to learn basic electrical rules and improve your child's hands-on ability. ​It is simple , but very practical in use, which brings great convenience to you.​ These lightweight physics experiment equipment are perfect for physics demos and projects in school such as teaching basic principles of electricity or how a simple circuit works. Adopts precision production to stable characteristics and high reliability.