good quality e27 lamp holder ceramic material

1, Screw: E27 standard screw
2, Material: high temperature ceramic + phosphor bronze
3, Specifications: Diameter 40MM, 45MM height
4, Applied voltage: AC220V, 4A
5, Applicable Power: 1000W or less
6, Uses: with E27 light source, E27 screw bulb type lamps, electrical use
7, E27 screw mean?
E27 is a lamp models, E thread mouth representatives, 27 representatives of the

size of the figures behind the thread diameter, E27 is one of the most common

household lamp type.