E10 black plastic lampholder 
The material is ABS+ PC 
The metal : cooper plated nickel 
packing :
QTY:2500PCS/CNT 
Carton size :36*33*30CM Weight :15KGS

Type: Screw Type Lamp Socket Base
Specification: E10
Material: Bakelite Shell + Brass Contact
Color: Black
Work for all kinds of LED light, Halogen bulb, CFL Light Bulb lamp.

Allows you to use a Small Edison Screw Light Bulb in a Small Bayonet Lamp Socket.

Made of high quality Bakelite shell and brass contact, flame retardant, high temperature resistance, good conduction performance, low resistance, much safer to use.

Easy to install, there are two mounting screw holes, which can be easily fixed on a flat surface where you need.

Widely used in old flashlight accessories, lamp holders, physics teaching, DIY popular science equipment etc.