The R17D to Conversion Lamp Holder is a good product designed for easy and convenient installation. This lamp holder converter design allows you to convert R17D to , making it suitable for T8 and T5 lamps. With its long lifespan and stability, this lamp holder is built to last and can be used in various settings, including homes, businesses, and industrial areas. Features -Color:White -Material:Plastic -Size:2.50X2.50X1.00cm/0.98X0.98X0.39in -Made from sturdy material, this conversion lamp holder is not only durable but also safe to use. -With its easy conversion from r17d to , this lamp holder is compatible with both and t5 lamps, making it a versatile choice for various lighting needs. -Boasting a long lifespan and stability, this lamp holder is designed for prolonged use, ensuring that you get the of your investment. -Thanks to its simple plug-and-play installation, this lamp holder is incredibly convenient to use, allowing you to quickly and easily upgrade your lighting system. -Suitable for a wide range of applications in homes, businesses, and industrial areas, this lamp holder is a reliable and cost-effective solution for all your lighting needs. Package list: 20 x Lamp Holder Converters