840 screw type lampholder products are offered for sale by suppliers on Alibaba.com, of which lamp holders & lamp bases accounts for 97%.
A wide variety of screw type lampholder options are available to you, such as plastic, ceramic and copper.You can also choose from screw, socket and plug screw type lampholder,as well as from white, black, and wood screw type lampholder,and whether screw type lampholder is safety, or eco-friendly.