Ideal for both indoor and outdoor light sockets, the E27 screw flat lamp holder offers versatility and reliability. Its thickened ceramic material ensures performance, even in demanding environments. for ceiling light sockets or table light sockets, this holder can be easily installed.Enhance your lighting setup with this durable and efficient lamp holder. Features - Color: White -Material:PP,Copper,Ceramic - Size: 9.40X9.10X4.80cm/3.69X3.58X1.89in -Applicable : - support: this thickened ceramic lamp holder supports bulbs, ensuring safe and reliable operation for powerful lighting -Convenient e27 screw base: the e27 screw base design simplifies the installation process, making it compatible with a wide range of lighting fixtures -Led compatible design: for ceiling light sockets or table light sockets, this holder can be easily installed.Enhance your lighting setup with this durable and efficient lamp holder -Reliable : with a rating, this lamp holder ensures stable and consistent performance in various environments -Effortless installation: designed for ease of use, this lamp holder can be quickly and easily installed, meeting the demands of different lighting scenarios Package list: 20 x Ceiling Lamp Holder Base