Crafted to meet the needs of both professionals and DIY enthusiasts, this plug-in lamp holder is perfect for aging tests and display purposes. Its robust design performance, while its compatibility with standard tubes makes it a versatile addition to your lighting toolkit. Use it to test, showcase, or replace your lighting fixtures with ease. Features -Color:White -Material: -Size:3.50X2.90X1.90cm/1.38X1.14X0.75in -Longterm reliability: engineered for durability testing, this light socket ensures consistent performance and reduces the need for frequent replacements -Streamlined plugin design: plugin mechanism simplifies installation and replacement, making it ideal for busy production and repair environments -Convenient display feature: includes a display rack to visually monitor tube conditions, improving inventory tracking and customer selection efficiency -Broad compatibility: supports multiple fluorescent tube sizes, catering to diverse lighting requirements in various settings -Industrial and commercial use: suitable for a wide range of applications, this product is tailored for demanding environments requiring robust lighting Package list: 10 x lamp holders