These lamp holders are crafted from plastic and brass, providing both durability and a sleek appearance. The screw-in design ensures a secure connection, while the included wires facilitate easy integration into your electrical projects. Ideal for home laboratories, these holders are nice for experiments, repairs, and lighting solutions. Features -Color:Multi -Material:Brass, Plastic -Size:23.00X1.50X1.50cm/9.04X0.59X0.59in -Stable bulb fit: designed for bulbs, ensuring a secure and reliable connection to maintain optimal lighting performance in various settings -Efficient build: constructed with brass and plastic for conductivity, reducing resistance and heat while extending the operational life of bulbs -With screw-in mechanism: features a threaded socket for quick and simple bulb installation or replacement, minimizing downtime during maintenance -Adaptable usage: suitable for home projects, laboratory setups, or educational displays, offering versatile lighting solutions for different environments -Pre-wired design: includes attached wires for effortless installation, saving time and reducing complexity in both temporary and permanent setups Package list: 60 x screw lamp holders