Are you looking for a professional and reliable lamp base? Do you need a sturdy, versatile tool that can handle multiple tasks? Look no further. This lamp base is designed to meet your needs and is an excellent choice for various lighting applications. Features: - Color: Golden - Material: Copper - Size: 1.90 x 1.20 x 1.00 cm / 0.75 x 0.47 x 0.39 in - Socket: E10 - Made of high-grade copper material with a brass screw socket for easy installation and reliable performance - Ideal for electronic experiments in primary and secondary schools; a necessary electrical component for elementary science projects, middle school physics labs, and student home experiments - Suitable as a lamp holder for DIY physics teaching tools, science experiment kits, car light modifications, and other DIY lighting projects - Allows use of a small screw-base bulb in a small bayonet socket - Precision manufacturing ensures durability, long-term use, and resistance to damage Package list: 50 x bulb holders