What Is an LED Holder?

Mounting methods are divided into bayonet, screw and other methods, and materials are divided into bakelite, plastic, metal, ceramic and other materials. Commonly used lamp holders such as E27 are the most common energy-saving lamp screw sockets. The lamp holder is usually called T8 lamp holder or T5 lamp holder, etc. According to the use environment, some lamp holders have a protection level of up to IP68. When purchasing, please make the corresponding IP protection class lamp holder (waterproof, etc.). The lamp holder will use IEC (International Electrotechnical Commission Standard) safety certification.

LED lamp holder

It is divided into bayonet from the installation method,

E14, E27, E12, E26, etc. The beginning of E usually is: screw socket

The beginning of GU such as GU10 refers to the bayonet type that we use every day. GU: G indicates that the lamp head type is plug-in type, U indicates that the lamp head part is U-shaped, and the following numbers indicate the center distance of the lamp pin hole (unit: millimeter "MM") .

MR16, MR11 beginning with MR is a small spotlight with direct plug-in local lighting. This lamp holder is commonly used. Usually, small spotlights have two pins for easy installation.

MR16 and GU10 are different lamp holders, PAR30 and 38 are different diameters. They are the world's common standard and name. They are called lamp cups and spotlights, and they are suitable for different ceiling lamps.

MR16 in the lighting industry refers to lamps with multi-faceted reflectors with a maximum outer diameter of 2 inches. MP11 is a smaller lamp than MR16.

MRMR: Multiface Reflect, multi-face reflection (light cup), the number on the back indicates the diameter of the light cup (the unit is 1/8 inch), the caliber of MR16 = 16 x 1/8 = 2 inches 50mm

PAR lamps generally have PAR30, PAR36, PAR46, and PAR56.

B-- bayonet lamp head;

BA-- bayonet lamp head, originally used for car lights;

BM-- bayonet lamp cap for mining lamp;

E-(Edison) screw head;

F-lamp holder with an outlet contact;

Lowercase letters after the letter F indicate different forms of contacts, for example:

a--indicates a cylindrical pin;

b--represents a pin with a groove;

c--special-shaped pin;

G--Two or more protruding contacts, such as pins or terminals;

K-- lamp holder with wire connection;

P--pre-focusing lamp head;

R-- lamp cap with concave contact;

S--shell-type lamp holder--fixes the lamp holder without relying on protruding parts in the lamp holder

SV--Shell-type lamp cap (V shape) with tapered end;

T--lamp for telephone;

W --- indicates the lamp end, the electrical contact between the lamp and the lamp holder is directly completed by the lead located on the surface of the lamp end, and the glass part (or other insulating material part) of the lamp end is necessary for the installation of the lamp in the lamp holder Less. For a single lamp cap that can replace the entire lamp end and indicate the same interchangeability requirements, it can also be represented by a symbol;

Note: Some of the earlier symbols were shaped like stilts, which led to the use of the letter symbol "W".

For example: E27--screw head;

F a4-- base with a cylindrical pin contact.

X--If according to the above provisions, a lamp cap cannot be represented by a symbol, such a lamp cap is represented by a capital letter X plus a series of numbers.

For example: X511-glass lamp end with two independent metal wings.