Professional Custom Lamp Holder Accessories Manufacturer

What is e27 socket?  The E27 lamp socket (medium). The letter "E" designation refers to the Edison screw type, while the number refers to the diameter of the base in millimeters.

 
E27 Screw socket designations are also assigned to lamp sockets. For example, a light fixture with an E27 socket will require an E27 bulb to work with. E27 is the American standard socket for E26 base bulbs rated for 120V.

E27 lamp holder can be used with European standard E27 base bulbs. Both types are interchangeable, and some light fixtures refer to these sockets as E26/E27. However, E27 sockets are rated for 220V; therefore, the voltage compatibility of bulb and light fixture must be checked.

 
E27 lamp holder Description:
* Rating:  4A/250V;
* Material: ceramic;
* Screw ferrule: E26/E27;
* porcelain lampholders /lamp base/lamp receptacle
Standard screw shells are aluminum.
(Brass and nickel plated brass available at extra cost.)
Bracket types available are listed on page B7.
Standard packed 200 to a carton.

E27 light bulb socket features:
A, lamp holder appearance of the coating should be uniform, bright and firm, without peeling phenomena such as flooding and the inner surface of the coating and corrosion may not have exposed at the end of the phenomenon;
B, head surface should be clean, not a variegated, Pseudomonas, sludge, plating traces or heavy water stains spots;
C, iron lamp holder housing should not have wrinkles, defects and significant deformation;
D, head of the insulator shall not affect the mechanical strength and electrical properties of cracks and defects. Spot pattern is not obvious not exceed 2mm, Crack defects must not exceed 1mm.